Built-in pump sealing material for SPA and manufacturing process of built-in pump sealing material

Abstract

The invention discloses a built-in pump sealing material for SPA. The high-strength and high-toughness plastic material is prepared from the following components in parts by weight: 90 to 100 parts of acrylonitrile-butadiene-styrene, 8 to 10 parts of petroleum resin, 15 to 20 parts of silicon rubber, 8 to 12 parts of rubber fiber, 8 to 12 parts of polyester fiber, 2 to 3 parts of p-xylene tetraaminomethylthiazole, 1 to 2 parts of dibutyl phthalate, 0.5 to 1 part of stearic acid, 2 to 4 parts of paraffin, 2 to 3 parts of tributyl citrate, 3 to 5 parts of glycerol and 1 to 2 parts of phosphite ester. The built-in pump sealing material for the SPA and the manufacturing process of the built-in pump sealing material have the beneficial effects that by optimizing the composition of the material and improving the production process, the high-temperature resistance and high-pressure resistance of the sealing material are effectively improved, and the aging, deformation and fatigue phenomena of the material are delayed, so that the durability of the sealing effect is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing materials, in particular to a built-in pump sealing material for SPA and a manufacturing process thereof. Background Art

[0002] SPA (hydrotherapy) internal pumps are usually used in home or commercial hydrotherapy equipment, such as massage bathtubs, hot tubs, massage pools, etc. Such pump systems need to withstand high temperature, pressure and humid environment when working, which requires them to have good sealing performance to prevent water or other liquids from leaking and ensure the safety and reliable operation of the internal parts of the pump body.

[0003] In addition, the water in the spa system often contains various chemicals (such as disinfectants, spices, etc.), which may corrode the internal parts of the pump. Therefore, the use of suitable sealing materials can effectively protect the pump system from damage and extend its service life.

[0004] However, the sealing materials of the built-in pumps used in SPAs are prone to aging, deformation or fatigue under high temperature and high pressure environments, especially under conditions of long-term high-temperature water flow and frequent startup, which may cause the seal to fail. Secondly, some sealing materials have limited tolerance to chemical substances. When exposed to disinfectants or other chemical additives for a long time, they may corrode or harden, affecting the sealing effect, which needs further development and improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a SPA built-in pump sealing material and its manufacturing process in order to solve the problem that the existing SPA built-in pump sealing material is prone to aging, deformation or fatigue, resulting in a decrease in its physical properties and affecting the sealing effect.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a built-in pump sealing material for SPA, comprising the following components by weight: 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite.

[0007] A manufacturing process of a built-in pump sealing material for a SPA comprises the following steps: Step S01: weighing for later use, weighing 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite for later use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 180-220° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 150-180° C.; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

[0008] Furthermore, in step S02, the stirring speed of mixing acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber in the mixer is 30-60r / min, and the stirring speed is adjusted to 60-100r / min after dibutyl phthalate, tributyl citrate, propylene glycol and phosphite are added.

[0009] Furthermore, in step S03, the temperature in the mixer is controlled between 80-100° C., and the mixing time is about 10-15 minutes.

[0010] Furthermore, the product test contents in step S07 include size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low-temperature brittle temperature and compression permanent deformation performance.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the built-in pump sealing material for SPA and its manufacturing process provided by the present invention, by optimizing the composition of the material and improving the production process, effectively improves the high temperature and high pressure resistance of the sealing material, delays the aging, deformation and fatigue of the material, and thus significantly improves the durability of the sealing effect. The sealing material can maintain good physical properties under the environment of long-term high-temperature water flow and frequent startup, and reduces the water leakage problem caused by sealing failure. In addition, the sealing material of the present invention also has strong chemical corrosion resistance, can resist the erosion of common disinfectants and chemical additives in the SPA system, prevent the material from hardening or corrosion, and ensure long-term stable operation. Therefore, the present invention not only effectively improves the service life of the sealing material, but also reduces the maintenance frequency, and has high economic benefits and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] Combination Figure 1 The SPA built-in pump sealing material shown includes the following components by weight: 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite.

[0015] A manufacturing process of a built-in pump sealing material for a SPA, comprising the following steps: Step S01: weighing for later use, weighing 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite for later use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 180-220° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 150-180° C.; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

[0016] In the step S02, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber are mixed in a mixer at a stirring speed of 30-60 r / min, and the stirring speed is adjusted to 60-100 r / min after dibutyl phthalate, tributyl citrate, propylene glycol and phosphite are added; in the step S03, the temperature in the mixer is controlled between 80-100° C., and the mixing time is about 10-15 minutes; in the step S07, the product test content includes size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low-temperature brittle temperature and compression permanent deformation performance.

[0017] The present invention is described below by means of more specific embodiments.

[0018] Embodiment 1: A built-in pump sealing material for SPA comprises the following components by weight: 90 parts of acrylonitrile-butadiene-styrene, 8 parts of petroleum resin, 15 parts of silicone rubber, 8 parts of rubber fiber, 8 parts of polyester fiber, 2 parts of p-xylene tetraaminomethylthiazole, 1 part of dibutyl phthalate, 0.5 parts of stearic acid, 2 parts of paraffin, 2 parts of tributyl citrate, 3 parts of glycerol and 1 part of phosphite.

[0019] A manufacturing process of a built-in pump sealing material for a SPA comprises the following steps: Step S01: weighing for standby use, weighing 90 parts of acrylonitrile-butadiene-styrene, 8 parts of petroleum resin, 15 parts of silicone rubber, 8 parts of rubber fiber, 8 parts of polyester fiber, 2 parts of p-xylene tetraaminomethylthiazole, 1 part of dibutyl phthalate, 0.5 parts of stearic acid, 2 parts of paraffin, 2 parts of tributyl citrate, 3 parts of glycerol and 1 part of phosphite for standby use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 180° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 150° C.; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

[0020] In the step S02, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber are mixed in the mixer at a stirring speed of 30 r / min, and the stirring speed is adjusted to 60 r / min after the addition of dibutyl phthalate, tributyl citrate, propylene glycol and phosphite; in the step S03, the temperature in the mixer is controlled between 80°C and the mixing time is about 10 minutes; in the step S07, the product test content includes size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low-temperature brittle temperature and compression permanent deformation performance.

[0021] Embodiment 2: A built-in pump sealing material for SPA comprises the following components by weight: 95 parts of acrylonitrile-butadiene-styrene, 9 parts of petroleum resin, 18 parts of silicone rubber, 10 parts of rubber fiber, 10 parts of polyester fiber, 2 parts of p-xylene tetraaminomethylthiazole, 1 part of dibutyl phthalate, 0.8 parts of stearic acid, 3 parts of paraffin, 2 parts of tributyl citrate, 4 parts of glycerol and 1 part of phosphite.

[0022] A manufacturing process of a built-in pump sealing material for a SPA comprises the following steps: Step S01: weighing for standby use, weighing 95 parts of acrylonitrile-butadiene-styrene, 9 parts of petroleum resin, 18 parts of silicone rubber, 10 parts of rubber fiber, 10 parts of polyester fiber, 2 parts of p-xylene tetraaminomethylthiazole, 1 part of dibutyl phthalate, 0.8 parts of stearic acid, 3 parts of paraffin, 2 parts of tributyl citrate, 4 parts of glycerol and 1 part of phosphite for standby use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 200° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 165°C; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

[0023] In the step S02, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber are mixed in the mixer at a stirring speed of 45 r / min, and the stirring speed is adjusted to 80 r / min after the addition of dibutyl phthalate, tributyl citrate, propylene glycol and phosphite; in the step S03, the temperature in the mixer is controlled between 90°C and the mixing time is about 13 minutes; in the step S07, the product test content includes size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low-temperature brittle temperature and compression permanent deformation performance.

[0024] Embodiment three: A built-in pump sealing material for SPA comprises the following components by weight: 100 parts of acrylonitrile-butadiene-styrene, 10 parts of petroleum resin, 20 parts of silicone rubber, 12 parts of rubber fiber, 12 parts of polyester fiber, 3 parts of p-xylene tetraaminomethylthiazole, 2 parts of dibutyl phthalate, 1 part of stearic acid, 4 parts of paraffin, 3 parts of tributyl citrate, 5 parts of glycerol and 2 parts of phosphite.

[0025] A manufacturing process of a built-in pump sealing material for a SPA comprises the following steps: Step S01: weighing for standby use, weighing 100 parts of acrylonitrile-butadiene-styrene, 10 parts of petroleum resin, 20 parts of silicone rubber, 12 parts of rubber fiber, 12 parts of polyester fiber, 3 parts of p-xylene tetraaminomethylthiazole, 2 parts of dibutyl phthalate, 1 part of stearic acid, 4 parts of paraffin, 3 parts of tributyl citrate, 5 parts of glycerol and 2 parts of phosphite according to weight parts for standby use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 220° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 180° C.; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

[0026] In the step S02, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber are mixed in the mixer at a stirring speed of 60 r / min, and the stirring speed is adjusted to 100 r / min after the addition of dibutyl phthalate, tributyl citrate, propylene glycol and phosphite; in the step S03, the temperature in the mixer is controlled at 100° C., and the mixing time is about 15 minutes; in the step S07, the product test content includes size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low-temperature brittle temperature and compression permanent deformation performance.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A built-in pump sealing material for SPA, characterized in that: The invention comprises the following components by weight: 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite.

2. A manufacturing process of a built-in pump sealing material for SPA, characterized in that: The following steps are involved: Step S01: weighing for later use, weighing 90-100 parts of acrylonitrile-butadiene-styrene, 8-10 parts of petroleum resin, 15-20 parts of silicone rubber, 8-12 parts of rubber fiber, 8-12 parts of polyester fiber, 2-3 parts of p-xylene tetraaminomethylthiazole, 1-2 parts of dibutyl phthalate, 0.5-1 parts of stearic acid, 2-4 parts of paraffin, 2-3 parts of tributyl citrate, 3-5 parts of glycerol and 1-2 parts of phosphite for later use; Step S02: Mixing and stirring, firstly, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber prepared in the step S01 are fed into a mixer for preliminary mixing and stirring, and then the dibutyl phthalate, tributyl citrate, propylene glycol and phosphite prepared in the step S01 are gradually added after the preliminary stirring until the above materials are stirred into a uniform state; Step S03: pre-vulcanization treatment, adding xylene tetraaminomethylthiazole and silicone rubber to the mixture prepared in step S02, and then feeding the mixture into a mixer for mixing until the mixture becomes uniform and has no obvious particles; Step S04: thermoplastic processing, sending the mixture obtained in step S03 into an extruder for thermoplastic processing, and molding the final product form through a set mold, and the extrusion temperature is 180-220° C.; Step S05: vulcanization and cross-linking, vulcanizing the material obtained after extrusion molding in step S04 to ensure that the sealing material has elasticity and stability, and the temperature is controlled between 150-180° C.; Step S06: Cooling and post-processing, cooling the material after the vulcanization treatment in step S05 by water cooling or air cooling to quickly cool the sealing material to room temperature, and then deburring, grinding and cutting the sealing material to ensure that the final product meets the specification requirements; Step S07: testing and packaging, testing the product obtained in step S06 to ensure that it meets the specified standards and requirements, and finally packaging the sealing materials that have passed the test, and marking the specifications, models, batches and other information, and storing or transporting them to where they are needed.

3. The manufacturing process of a built-in pump sealing material for SPA according to claim 2, characterized in that In step S02, the acrylonitrile-butadiene-styrene, petroleum resin, stearic acid, paraffin, rubber fiber and polyester fiber are mixed in a mixer at a stirring speed of 30-60 r / min, and the stirring speed is adjusted to 60-100 r / min after dibutyl phthalate, tributyl citrate, propylene glycol and phosphite are added.

4. The manufacturing process of a built-in pump sealing material for SPA according to claim 2, characterized in that In step S03, the temperature in the mixer is controlled between 80-100° C., and the mixing time is about 10-15 minutes.

5. The manufacturing process of a built-in pump sealing material for SPA according to claim 2, characterized in that The product testing contents in step S07 include size, appearance, hardness, oil resistance, temperature resistance, aging resistance, corrosion resistance, tensile strength, elongation at break, low temperature brittle temperature and compression permanent deformation performance.

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