High-strength pipe-made threaded opening glass bottle and manufacturing process thereof

Abstract

The invention provides a high-strength pipe-made threaded opening glass bottle and a manufacturing process thereof, and belongs to the technical field of glass container manufacturing. According to the invention, the glass bottle making process flow is optimized, and the zinc oxide-niobium pentoxide compound, titanium dioxide modified aluminum oxide, modified magnesium oxide and other components are selected, so that the made pipe-type threaded opening glass bottle can bear impact energy, the internal stress level of the glass bottle is reduced, and meanwhile, the rupture pressure is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass container manufacturing, and in particular relates to a high-strength tube-threaded glass bottle and a manufacturing process thereof. Background Art

[0002] Glass bottles are common containers in daily life and are widely used. As packaging materials, glass bottles are mainly used for packaging food, oil, wine, beverages, condiments, cosmetics and liquid chemical products. They have the characteristics of simple manufacturing process, free and varied shapes, high hardness, heat resistance, cleanliness, easy cleaning, and reusability. The characteristics of glass bottles include: good barrier properties; good heat resistance; stable chemical and physical properties, acid and alkali resistance, suitable for long-term storage; good transparency, not easy to be damaged; can be used repeatedly to reduce packaging costs. However, the impact energy that existing tube threaded glass bottles can withstand is low, the rupture pressure is not high, and the internal stress level is high, resulting in low strength, which seriously restricts its use.

[0003] Therefore, how to optimize the glass bottle manufacturing process and select suitable component materials to increase the impact energy that can be sustained, reduce the internal stress level, and increase the rupture pressure to obtain high-strength regulated threaded glass bottles has become a direction that needs to be focused on. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a high-strength tube-shaped threaded glass bottle and a manufacturing process thereof, aiming to solve the problems that the existing tube-shaped threaded glass bottles can withstand are low impact energy, low rupture pressure, and high internal stress level, resulting in low strength.

[0005] The present invention optimizes the glass bottle manufacturing process and selects components such as zinc oxide-niobium pentoxide composite, titanium dioxide modified alumina, modified magnesium oxide, etc., so that the manufactured pipe threaded mouth glass bottle can withstand impact energy, reduce the stress level in the glass bottle, and increase the rupture pressure.

[0006] The technical solution of the present invention is as follows:

[0007] The first aspect of the present invention provides a process for manufacturing a high-strength tube-threaded glass bottle, which is characterized by comprising the following steps:

[0008] Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device;

[0009] Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine;

[0010] Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 8 to 10 mm;

[0011] Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 4 to 6 mm;

[0012] Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 3 to 5 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product;

[0013] Step (6): The pre-finished product of step (5) is processed by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 8 to 10 mm;

[0014] Step (7): The pre-finished product of step (6) is processed by a second bottom-making flame of a bottle making machine, wherein the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 8 to 10 mm;

[0015] Step (8): the pre-finished product of step (7) is transported and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 10 to 12 mm;

[0016] Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 8 to 10 mm;

[0017] Step (10): The pre-finished product of step (9) is treated by a second preheating flame for the neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame for the neck and shoulder of the bottle making machine and the pre-finished product is 3 to 5 mm;

[0018] Step (11): the pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, wherein the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 8 to 10 mm;

[0019] Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11);

[0020] Step (13): treating the pre-finished product obtained in step (12) by means of a bottle mouth heating flame of a bottle making machine, wherein the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 6 to 8 mm;

[0021] Step (14): The primary finished product of step (13) is finely ground and formed to obtain a high-strength tube-shaped threaded glass bottle.

[0022] The following are preferred technical solutions of the present invention, but are not intended to limit the technical solutions provided by the present invention. Through the following preferred technical solutions, the objectives and beneficial effects of the present invention can be better achieved and realized.

[0023] Preferably, the flame nozzle of the first preheating flame, the flame nozzle of the second preheating flame and the flame nozzle of the primary forming flame are at the same height.

[0024] Blowing air to the glass tube through a cooling device can prevent the air in the tube from condensing into water droplets on the wall, causing the glass tube to burst or forming water marks on the inner wall. The flame nozzles of the first preheating flame, the second preheating flame and the initial forming flame are at the same height to ensure the level and uniformity of the production.

[0025] As a preferred technical solution of the present invention, the preparation method of the glass tube is: in parts by weight, 70 to 75 parts of quartz sand, 12 to 15 parts of sodium oxide, 8 to 10 parts of calcium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of magnesium oxide and 1 to 2 parts of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a glass melt; the glass melt is poured into a mold for molding, and a glass tube is obtained after post-processing.

[0026] Preferably, the post-treatment method is: first maintain at 600°C for 0.2h, then reduce to 450°C at a rate of 2°C / min and maintain for 0.5h, then reduce to 330°C at a rate of 10°C / min and maintain for 2h, and finally cool to room temperature.

[0027] As a preferred technical solution of the present invention, the preparation method of the zinc oxide-niobium pentoxide composite is as follows: by weight, 2 parts of niobium chloride and 10 parts of acetic acid are added to 80 parts of ethanol and stirred for 0.5 hours, and then 5 parts of zinc oxide are added and stirred for 2 hours to obtain a mixed solution; the mixed solution is transferred to a reactor lined with polytetrafluoroethylene, reacted at 200°C for 48 hours, cooled to room temperature after the reaction is completed, centrifuged and washed with ethanol to obtain a white precipitate, and the precipitate is calcined at 300°C for 2 hours to obtain a zinc oxide-niobium pentoxide composite.

[0028] The zinc oxide in the zinc oxide-niobium pentoxide composite is conducive to the formation of crystalline phase in the glass, which can improve the crystallinity and increase the number of grain boundaries, effectively inhibit the expansion of cracks in the glass, improve the microstructure of the glass, and thus increase the fracture pressure of the glass; while the niobium pentoxide in the composite can form Nb in the coordinated state of [NbO4] and [NbO6] 5+It reacts with Si-O-Si in the glass structure to form Nb-O-Si and Nb=O bonds. These chemical bonds can reduce the non-bridging oxygen in the glass structure, play a "network-filling" role in the glass network structure, and strengthen the glass network structure to accept more impact energy.

[0029] As a preferred technical solution of the present invention, the alumina is titanium dioxide modified alumina. The preparation method of the titanium dioxide modified alumina is as follows: weigh 20 parts of titanium dioxide, 40 parts of alumina, 8 parts of methyl trioctylammonium chloride, 4 parts of 2-methyl-2,4-pentanediol, and 2 parts of polyethylene glycol, mix them evenly, and then ball mill and disperse them for 30 hours to obtain a mixed slurry; in a nitrogen atmosphere, treat the mixed slurry at 800° C. for 12 hours, and then crush and grind it after cooling to room temperature to obtain titanium dioxide modified alumina.

[0030] Titanium dioxide modified alumina can form free Al 3+ and Ti 4+ , Al 3+ Combined with free oxygen ions to form [AlO4], and connected with Si-O-Si bonds in the glass structure, repairing the glass network structure, increasing the degree of network connection of the glass, and increasing the fracture pressure of the glass; while Ti 4+ It can enter the gaps in the glass network structure, combine with free oxygen to form a four-coordinate structure, inhibit the expansion of microcracks in the glass, and form titanium-containing crystals with tiny dendrite structures that are evenly distributed in the glass matrix, making the glass connection tighter and reducing the internal stress level.

[0031] As a preferred technical solution of the present invention, the magnesium oxide is modified magnesium oxide. The preparation method of the modified magnesium oxide is as follows: by weight, 2 parts of polyvinyl alcohol are added to 100 parts of deionized water, stirred for 1 hour, then 40 parts of magnesium oxide and 4 parts of lanthanum oxide are added and mixed evenly, kept warm at 1600°C for 3 hours, and then dried at 110°C for 12 hours to obtain modified magnesium oxide.

[0032] Lanthanum oxide is introduced into the modified magnesium oxide. Lanthanum oxide can be used as a modifier of the glass network. It enters the glass network structure in the form of cations and reacts with the free O in the glass structure. 2- Combination can reduce the number of non-bridging oxygen. In addition, lanthanum oxide can promote the formation of lanthanum-containing silicate phases. Most of the lanthanum-containing silicate phases have a rod-like or needle-like shape. These lanthanum-containing silicate phases with specific shapes have a pinning effect, which can effectively inhibit crack propagation. The combined effect reduces internal stress. The lanthanum-containing silicate phase is generated between the crystal lattices, which can fill the pores and increase the density, so that the glass grains are tightly combined and the material density is improved, so that it can withstand more impact energy when broken.

[0033] In a second aspect, the present invention provides a high-strength tube-shaped threaded-mouth glass bottle manufactured by the manufacturing process described in the first aspect.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The present invention optimizes the production process and cooperates with the zinc oxide-niobium pentoxide composite and modified magnesium oxide in the components to increase the Nb content of the zinc oxide-niobium pentoxide composite. 5+ It can form Nb-O-Si and Nb=O bonds with Si-O-Si in the glass structure, and play a "network-filling" role in the glass network structure. Modified magnesium oxide can promote the formation of lanthanum-containing silicate phase, fill pores and increase density. The combined effect enables it to withstand more impact energy when broken.

[0036] (2) Ti of titanium dioxide modified alumina of the present invention 4+ It can enter the gap of glass network structure and combine with free oxygen to form a four-coordinate structure, inhibiting the expansion of microcracks in glass. Lanthanum oxide modified with magnesium oxide can be used as a modifier of glass network, entering the glass network structure in the form of cations, and combining with free O in the glass structure. 2- Combined with reducing the amount of non-bridging oxygen and adjusting the manufacturing process, the internal stress can be reduced.

[0037] (3) The zinc oxide in the zinc oxide-niobium pentoxide composite of the present invention is conducive to the formation of a crystalline phase in the glass, which can improve the crystallinity and increase the number of grain boundaries, thereby improving the microstructure of the glass. The titanium dioxide-modified aluminum oxide can form free Al 3+ , combining with free oxygen ions to form [AlO4], and connecting with the Si-O-Si bonds in the glass structure, and selecting a suitable manufacturing process to achieve the effect of repairing the glass network structure, increasing the degree of network connection of the glass, and increasing the glass breakage pressure. DETAILED DESCRIPTION

[0038] To facilitate understanding of the present invention, the present invention lists the following embodiments. Those skilled in the art should understand that the embodiments are only used to help understand the technical solutions of the present invention and should not be regarded as specific limitations of the present invention.

[0039] The sources of some components in the embodiments and comparative examples are as follows:

[0040] Quartz sand, CAS No. 14808-60-7; Sodium oxide, CAS No. 1313-59-3; Calcium oxide, CAS No. 1305-78-8; Aluminum oxide, CAS No. 1302-74-5; Magnesium oxide, CAS No. 1309-48-4.

[0041] Preparation of zinc oxide-niobium pentoxide composite: In parts by weight, 2 parts of niobium chloride (CAS No. 10026-12-7) and 10 parts of acetic acid (CAS No. 64-19-7) are added to 80 parts of ethanol (CAS No. 64-17-5) and stirred for 0.5 h, and then 5 parts of zinc oxide (CAS No. 1314-13-2) are added and stirred for 2 h to obtain a mixed solution; the mixed solution is transferred to a reactor lined with polytetrafluoroethylene, and reacted at 200° C. for 48 h. After the reaction is completed, it is cooled to room temperature, centrifuged and the white precipitate is washed with ethanol, and the precipitate is calcined at 300° C. for 2 h to obtain a zinc oxide-niobium pentoxide composite.

[0042] Preparation of titanium dioxide modified alumina: In parts by weight, weigh 20 parts of titanium dioxide (CAS No. 13463-67-7), 40 parts of alumina (CAS No. 1302-74-5), 8 parts of methyltrioctylammonium chloride (CAS No. 5137-55-3), 4 parts of 2-methyl-2,4-pentanediol (CAS No. 107-41-5), and 2 parts of polyethylene glycol (CAS No. 25322-68-3), mix them evenly, and then ball-mill them for 30 hours to obtain a mixed slurry; under a nitrogen atmosphere, treat the mixed slurry at 800°C for 12 hours, cool to room temperature, and then crush and grind to obtain titanium dioxide modified alumina.

[0043] Preparation of modified magnesium oxide: In parts by weight, add 2 parts of polyvinyl alcohol (CAS No. 9002-89-5) to 100 parts of deionized water, stir for 1 hour, then add 40 parts of magnesium oxide (CAS No. 1309-48-4) and 4 parts of lanthanum oxide (CAS No. 1312-81-8) and mix evenly, keep warm at 1600°C for 3 hours, and then dry at 110°C for 12 hours to obtain modified magnesium oxide.

[0044] Example 1

[0045] This embodiment provides a manufacturing process for a high-strength tube-threaded glass bottle, comprising the following steps:

[0046] Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device;

[0047] Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine;

[0048] Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 10 mm;

[0049] Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 6 mm;

[0050] Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 5 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product;

[0051] Step (6): The pre-finished product of step (5) is treated by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 10 mm;

[0052] Step (7): The pre-finished product of step (6) is processed by the second bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 10 mm;

[0053] Step (8): the pre-finished product of step (7) is transferred and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 12 mm;

[0054] Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 10 mm;

[0055] Step (10): The pre-finished product of step (9) is treated by a second preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame of the bottle neck and shoulder and the pre-finished product is 5 mm;

[0056] Step (11): The pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, and the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 10 mm;

[0057] Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11);

[0058] Step (13): The pre-finished product obtained in step (12) is treated by a bottle mouth heating flame of a bottle making machine, wherein the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 8 mm;

[0059] Step (14): The primary finished product of step (13) is finely ground and formed to obtain a high-strength tube-shaped threaded glass bottle.

[0060] The preparation method of the glass tube in step (1) is as follows: 70 parts by weight of quartz sand, 14 parts of sodium oxide, 8 parts of calcium oxide, 4 parts of aluminum oxide, 2 parts of magnesium oxide and 2 parts of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a molten glass; the molten glass is poured into a mold for molding, firstly maintained at 600° C. for 0.2 hours, then reduced to 450° C. at a rate of 2° C. / min and maintained for 0.5 hours, then reduced to 330° C. at a rate of 10° C. / min and maintained for 2 hours, and finally cooled to room temperature to obtain a glass tube.

[0061] Example 2

[0062] This embodiment provides a manufacturing process for a high-strength tube-threaded glass bottle, comprising the following steps:

[0063] Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device;

[0064] Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine;

[0065] Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 8 mm;

[0066] Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 4 mm;

[0067] Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 3 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product;

[0068] Step (6): The pre-finished product of step (5) is processed by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 8 mm;

[0069] Step (7): The pre-finished product of step (6) is processed by the second bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 8 mm;

[0070] Step (8): the pre-finished product of step (7) is transferred and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 10 mm;

[0071] Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 8 mm;

[0072] Step (10): The pre-finished product of step (9) is treated by a second preheating flame for the neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame for the neck and shoulder of the bottle making machine and the pre-finished product is 3 mm;

[0073] Step (11): The pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, and the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 8 mm;

[0074] Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11);

[0075] Step (13): The pre-finished product obtained in step (12) is treated by a bottle mouth heating flame of a bottle making machine, wherein the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 6 mm;

[0076] Step (14): The primary finished product of step (13) is finely ground and formed to obtain a high-strength tube-shaped threaded glass bottle.

[0077] The preparation method of the glass tube in step (1) is as follows: by weight, 75 parts of quartz sand, 15 parts of sodium oxide, 10 parts of calcium oxide, 2 parts of titanium dioxide modified aluminum oxide, 1 part of modified magnesium oxide and 1 part of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a glass melt; the glass melt is poured into a mold for molding, firstly maintained at 600° C. for 0.2 hours, then reduced to 450° C. at a rate of 2° C. / min and maintained for 0.5 hours, then reduced to 330° C. at a rate of 10° C. / min and maintained for 2 hours, and finally cooled to room temperature to obtain a glass tube.

[0078] Example 3

[0079] This embodiment provides a manufacturing process for a high-strength tube-threaded glass bottle, comprising the following steps:

[0080] Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device;

[0081] Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine;

[0082] Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 9 mm;

[0083] Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 5 mm;

[0084] Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 4 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product;

[0085] Step (6): The pre-finished product of step (5) is processed by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 9 mm;

[0086] Step (7): The pre-finished product of step (6) is processed by the second bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 9 mm;

[0087] Step (8): the pre-finished product of step (7) is transferred and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 11 mm;

[0088] Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 9 mm;

[0089] Step (10): The pre-finished product of step (9) is treated by the second preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame of the bottle neck and shoulder and the pre-finished product is 4 mm;

[0090] Step (11): The pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, and the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 9 mm;

[0091] Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11);

[0092] Step (13): The pre-finished product of step (12) is treated by a bottle mouth heating flame of a bottle making machine, and the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 7 mm;

[0093] Step (14): The primary finished product of step (13) is finely ground and formed to obtain a high-strength tube-shaped threaded glass bottle.

[0094] The preparation method of the glass tube in step (1) is as follows: 72 parts by weight of quartz sand, 14 parts of sodium oxide, 9 parts of calcium oxide, 3 parts of titanium dioxide modified aluminum oxide, 3 parts of modified magnesium oxide and 1.8 parts of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a glass melt; the glass melt is poured into a mold for molding, firstly maintained at 600° C. for 0.2 hours, then reduced to 450° C. at a rate of 2° C. / min and maintained for 0.5 hours, then reduced to 330° C. at a rate of 10° C. / min and maintained for 2 hours, and finally cooled to room temperature to obtain a glass tube.

[0095] Example 4

[0096] This embodiment provides a process for manufacturing a high-strength tube-threaded glass bottle. The difference from Embodiment 1 is that in the preparation of the glass tube, alumina is used to replace titanium dioxide-modified alumina, and other conditions are the same as those in Embodiment 1.

[0097] Example 5

[0098] This embodiment provides a process for manufacturing a high-strength tube-threaded glass bottle. The difference from Embodiment 1 is that in the preparation of the glass tube, magnesium oxide is used to replace modified magnesium oxide, and other conditions are the same as those in Embodiment 1.

[0099] Comparative Example 1

[0100] This comparative example provides a manufacturing process for a pipe-shaped screw-mouth glass bottle, comprising the following steps:

[0101] Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device;

[0102] Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine;

[0103] Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 10 mm;

[0104] Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 6 mm;

[0105] Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 5 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product;

[0106] Step (6): The pre-finished product of step (5) is treated by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 10 mm;

[0107] Step (7): The pre-finished product of step (6) is processed by the second bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 10 mm;

[0108] Step (8): the pre-finished product of step (7) is transferred and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 12 mm;

[0109] Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 10 mm;

[0110] Step (10): The pre-finished product of step (9) is treated by a second preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame of the bottle neck and shoulder and the pre-finished product is 5 mm;

[0111] Step (11): The pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, and the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 10 mm;

[0112] Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11);

[0113] Step (13): The pre-finished product of step (12) is treated by a bottle mouth heating flame of a bottle making machine, and the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 8 mm;

[0114] Step (14): The primary finished product of step (13) is finely ground and shaped to obtain a tube-shaped screw-mouth glass bottle.

[0115] The preparation method of the glass tube in step (1) is as follows: 70 parts by weight of quartz sand, 14 parts of sodium oxide, 8 parts of calcium oxide, 4 parts of aluminum oxide, 2 parts of magnesium oxide and 2 parts of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a molten glass; the molten glass is poured into a mold for molding, firstly maintained at 600° C. for 0.2 hours, then reduced to 450° C. at a rate of 2° C. / min and maintained for 0.5 hours, then reduced to 330° C. at a rate of 10° C. / min and maintained for 2 hours, and finally cooled to room temperature to obtain a glass tube.

[0116] Comparative Example 2

[0117] This comparative example provides a process for manufacturing a glass bottle with a tube-shaped threaded mouth. The difference from comparative example 1 is that in this comparative example, 2 parts of zinc oxide-niobium pentoxide composite are added in the preparation of the glass tube, and other conditions are the same as those in comparative example 1.

[0118] Comparative Example 3

[0119] This comparative example provides a process for manufacturing a tube-threaded glass bottle. The difference from comparative example 1 is that titanium dioxide-modified alumina is used to replace alumina in the preparation of the glass tube, and other conditions are the same as those in comparative example 1.

[0120] Comparative Example 4

[0121] This comparative example provides a process for manufacturing a tube-threaded glass bottle. The difference from comparative example 1 is that modified magnesium oxide is used to replace magnesium oxide in the preparation of the glass tube, and other conditions are the same as those in comparative example 1.

[0122] The performance of the control screw-mouth glass bottles provided in the above embodiments and comparative examples was tested, and the testing method was as follows:

[0123] Impact test: Test according to the requirements of GB / T 6552-2015 Glass container mechanical impact test method.

[0124] Internal stress test: Test according to the requirements of GB / T 4545-2007 Glass Bottle Internal Stress Test Method.

[0125] Internal pressure resistance test: Test according to the requirements of GB / T 4546-2008 Test method for internal pressure resistance of glass containers.

[0126] The above performance test data is shown in Table 1.

[0127] Table 1 Performance test results

[0128] Impact energy at fragmentation (J) Internal stress (level) Burst pressure(MPa) Example 1 2.2 Level 2 4.75 Example 2 2.1 Level 2 4.73 Example 3 2.2 Level 2 4.76 Example 4 2.1 Level 3 3.36 Example 5 1.6 Level 3 4.73 Comparative Example 1 0.4 Level 4 2.46 Comparative Example 2 1.6 Level 4 3.38 Comparative Example 3 0.5 Level 3 3.35 Comparative Example 4 1.7 Level 3 2.48

[0129] From the above content, it can be seen that the present invention optimizes the glass bottle manufacturing process and selects zinc oxide-niobium pentoxide composite, titanium dioxide modified alumina, modified magnesium oxide and other components to produce high-strength tube threaded mouth glass bottles (Examples 1 to 3), the impact energy of which when broken is 2.1 to 2.2 J, the internal stress is level 2, and the rupture pressure is 4.73 to 4.76 MPa.

[0130] Compared with Example 1, if alumina is used to replace titanium dioxide to modify alumina, the internal stress level is increased and the rupture pressure is reduced (Example 4); compared with Example 1, if magnesium oxide is used to replace modified magnesium oxide, the internal stress level is increased and the impact energy during fragmentation is reduced (Example 5).

[0131] Comparative Example 1 does not adopt the technical innovation of the present invention, so the performance is poor, the impact energy at fragmentation is 0.4J, the internal stress is level 4, and the rupture pressure is 2.46MPa; compared with Comparative Example 1, if zinc oxide-niobium pentoxide composite is added, the impact energy at fragmentation is increased and the rupture pressure is increased (Comparative Example 2); compared with Comparative Example 1, if titanium dioxide modified alumina is used to replace alumina, the rupture pressure is increased and the internal stress level is reduced (Comparative Example 3); compared with Comparative Example 1, if modified magnesium oxide is used to replace magnesium oxide, the impact energy at fragmentation is increased and the internal stress level is reduced (Comparative Example 4).

[0132] In summary, the present invention optimizes the glass bottle manufacturing process and selects components such as zinc oxide-niobium pentoxide composite, titanium dioxide modified alumina, modified magnesium oxide, etc., so that the manufactured pipe threaded mouth glass bottle can withstand impact energy, reduce the stress level in the glass bottle, and increase the rupture pressure.

[0133] The applicant declares that the present invention illustrates the detailed process flow of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned detailed process flow, that is, it does not mean that the present invention must rely on the above-mentioned detailed process flow to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A process for producing a high-strength tube-threaded glass bottle, characterized in that: The following steps are involved: Step (1): inserting the glass tube into the chuck sleeve of the bottle making machine, and blowing air to the glass tube through a cooling device; Step (2): marking the height of the glass tube completed in step (1) by a marking device of a bottle making machine; Step (3): treating the glass tube after step (2) by a first preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the first preheating flame and the glass tube is 8 to 10 mm; Step (4): treating the glass tube after step (3) by a second preheating flame of a bottle making machine, wherein the distance between the flame nozzle of the second preheating flame and the glass tube is 4 to 6 mm; Step (5): The glass tube after step (4) is treated by a primary forming flame of a bottle making machine, wherein the distance between the flame nozzle of the primary forming flame and the glass tube is 3 to 5 mm, and after the primary forming flame treatment is completed, a glass bottle bottom is formed to obtain a primary finished product; Step (6): The pre-finished product of step (5) is processed by the first bottom-making flame of the bottle making machine, and the distance between the flame nozzle of the first bottom-making flame and the pre-finished product is 8 to 10 mm; Step (7): The pre-finished product of step (6) is processed by a second bottom-making flame of a bottle making machine, wherein the distance between the flame nozzle of the second bottom-making flame and the pre-finished product is 8 to 10 mm; Step (8): the pre-finished product of step (7) is transported and then treated by a heat preservation flame of a bottle making machine, wherein the distance between the flame nozzle of the heat preservation flame and the pre-finished product is 10 to 12 mm; Step (9): The pre-finished product of step (8) is treated by the first preheating flame of the bottle neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the first preheating flame of the bottle neck and shoulder and the pre-finished product is 8 to 10 mm; Step (10): The pre-finished product of step (9) is treated by a second preheating flame for the neck and shoulder of the bottle making machine, and the distance between the flame nozzle of the second preheating flame for the neck and shoulder of the bottle making machine and the pre-finished product is 3 to 5 mm; Step (11): the pre-finished product of step (10) is treated by a neck-making heating flame of a bottle-making machine, wherein the distance between the flame nozzle of the neck-making heating flame and the pre-finished product is 8 to 10 mm; Step (12): using a bottle making machine to extrude the bottle mouth and bottle neck of the primary finished product obtained in step (11); Step (13): treating the pre-finished product obtained in step (12) by means of a bottle mouth heating flame of a bottle making machine, wherein the distance between the flame nozzle of the bottle mouth heating flame and the pre-finished product is 6 to 8 mm; Step (14): The primary finished product of step (13) is finely ground and formed to obtain a high-strength tube-shaped threaded glass bottle.

2. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 1, characterized in that: The flame spray nozzle of the first preheating flame, the flame spray nozzle of the second preheating flame and the flame spray nozzle of the primary forming flame are at the same height.

3. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 1, characterized in that: The preparation method of the glass tube is as follows: by weight, 70 to 75 parts of quartz sand, 12 to 15 parts of sodium oxide, 8 to 10 parts of calcium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of magnesium oxide and 1 to 2 parts of zinc oxide-niobium pentoxide composite are mixed and ground to obtain a mixture; the mixture is heated to 1650° C. and melted for 10 hours to obtain a glass melt; the glass melt is poured into a mold for molding, and a glass tube is obtained through post-processing.

4. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 3, characterized in that: The post-treatment method is: first keep at 600°C for 0.2h, then reduce to 450°C at a rate of 2°C / min and keep for 0.5h, then reduce to 330°C at a rate of 10°C / min and keep for 2h, and finally cool to room temperature.

5. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 3, characterized in that: The preparation method of the zinc oxide-niobium pentoxide composite is as follows: by weight, 2 parts of niobium chloride and 10 parts of acetic acid are added to 80 parts of ethanol and stirred for 0.5 hours, and then 5 parts of zinc oxide are added and stirred for 2 hours to obtain a mixed solution; the mixed solution is transferred to a reaction kettle lined with polytetrafluoroethylene, reacted at 200° C. for 48 hours, cooled to room temperature after the reaction is completed, centrifuged and washed with ethanol to obtain a white precipitate, and the precipitate is calcined at 300° C. for 2 hours to obtain the zinc oxide-niobium pentoxide composite.

6. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 3, characterized in that: The alumina is titanium dioxide modified alumina.

7. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 6, characterized in that: The preparation method of the titanium dioxide modified alumina is as follows: weigh 20 parts of titanium dioxide, 40 parts of alumina, 8 parts of methyl trioctylammonium chloride, 4 parts of 2-methyl-2,4-pentanediol, and 2 parts of polyethylene glycol in parts by weight, mix them evenly, and then disperse them by ball milling for 30 hours to obtain a mixed slurry; in a nitrogen atmosphere, treat the mixed slurry at 800° C. for 12 hours, and then crush and grind the mixed slurry after cooling to room temperature to obtain titanium dioxide modified alumina.

8. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 3, characterized in that: The magnesium oxide is modified magnesium oxide.

9. The manufacturing process of a high-strength tube-threaded glass bottle according to claim 8, characterized in that: The preparation method of the modified magnesium oxide is as follows: by weight, 2 parts of polyvinyl alcohol are added to 100 parts of deionized water, stirred for 1 hour, then 40 parts of magnesium oxide and 4 parts of lanthanum oxide are added and mixed evenly, kept warm at 1600° C. for 3 hours, and then dried at 110° C. for 12 hours to obtain the modified magnesium oxide.

10. A high-strength tube-threaded glass bottle, characterized in that: It is made according to any one of the manufacturing processes described in claims 1 to 9.