Titanium alloy material polishing special accumulation abrasive belt and manufacturing method thereof

Abstract

The application discloses a special accumulation abrasive belt for polishing titanium alloy materials and a manufacturing method thereof. The special accumulation abrasive belt comprises a cloth base modified base material, a primer, a sand layer and a compound adhesive. In the cloth base modified base material, sodium tetraborate modified phenolic resin is added in the cloth base treatment slurry. In the primer, ultrahigh molecular polyethylene grafted modified phenolic resin is used. In the compound adhesive, polytetrafluoroethylene powder is added. The special accumulation abrasive belt for polishing titanium alloy materials is manufactured by using a composite stacking method, through two-step drying methods of pre-drying and main drying. The application has the advantages that the cloth base has low heat extension rate, does not deform during grinding, has good grinding life, does not adhere in the later stage when grinding titanium alloy, and can effectively maintain the removal rate of the abrasive.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of accumulation abrasive belt, specifically, a kind of titanium alloy material polishing special accumulation abrasive belt and its manufacturing method. BACKGROUND

[0002] At present, the processing and manufacturing industry of the world develops rapidly, and grinding and polishing process is developing towards high precision and high efficiency. Higher requirements for surface quality and machining accuracy of workpieces are required in the fields of aerospace instruments and equipment, medical devices, electronic products and precision manufacturing. Accumulation abrasive is a kind of abrasive particles with uniform particle size combined together by adhesive and uniform organization. The coated abrasive made of accumulation abrasive as grinding material is called accumulation abrasive cloth, which is converted into accumulation abrasive belt after processing. In the grinding process, the dull abrasive particles will continuously fall off, exposing new abrasive particles, and the service life is more than 5 times that of ordinary abrasive belt with the same particle size. It is mainly used in polishing field. The use life of the belt, polishing efficiency and the damage to the workpiece can be improved by ensuring the equal height of the accumulation abrasive belt surface during polishing.

[0003] Titanium alloy material itself has physical and mechanical properties. Surface burn and surface integrity reduction may occur during grinding. Titanium alloy contains oxygen, hydrogen, nitrogen, carbon, and sometimes impurity elements such as silicon and iron. These elements exist in the crystal lattice in the form of interstitial, which can increase the strength of titanium alloy and reduce its plasticity, even the fracture toughness, low temperature toughness, fatigue strength, corrosion resistance, cold forming and weldability are damaged. Titanium has high chemical properties at high temperature. At a certain grinding temperature, titanium forms an oxide and nitride protective film, which hardens the surface layer and makes it brittle, reduces the elasticity, and increases the degree of work hardening. During grinding, it is easy to adhere and block the grinding tool (grinding wheel or abrasive belt), causing overheating and reducing the surface integrity.

[0004] There is no accumulation abrasive belt developed for the problems occurring in the conventional grinding process of titanium alloy material in the existing market. Most of the accumulation abrasive belts are for the grinding field of stainless steel. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a titanium alloy material polishing special accumulation abrasive belt and its manufacturing method.

[0006] Technical scheme: The titanium alloy material polishing special accumulation abrasive belt comprises a cloth base modified base material, a primer, a sand layer and a compound adhesive,

[0007] The cloth base modified base material comprises a base material treated with cloth base treatment slurry, and the cloth base treatment slurry comprises, by weight fraction, 100 parts of emulsion, 30-50 parts of sodium tetraborate modified phenolic resin, 80-120 parts of filler and 0.1-1 parts of dispersant.

[0008] The primer comprises, by weight fraction, 100 parts of super-molecular polyethylene grafted modified phenolic resin, 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersing agent and 10-30 parts of heat dissipating agent;

[0009] The sand layer comprises a silicon carbide accumulated abrasive layer;

[0010] The rubber compound comprises, by weight fraction, 100 parts of resin, 10-30 parts of polytetrafluoroethylene powder, 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersing agent and 10-30 parts of heat dissipating agent.

[0011] As preferred, the emulsion comprises any one of butyronitrile, butylbenzene, white emulsion, acrylic acid, polyvinyl chloride, polyurethane or a mixture of two or more thereof.

[0012] As preferred, the filler comprises any one of calcium carbonate, wollastonite, talcum powder, calcium sulfate or a mixture of two or more thereof.

[0013] As preferred, the heat dissipating agent comprises one or more of sodium fluoride, calcium fluoride, potassium fluoborate and chlorinated paraffin.

[0014] As preferred, in the silicon carbide accumulated abrasive layer, the sanding amount is controlled to be 500-800 g / m 2 , the proportion of the accumulated abrasive particles with a size in the range of φ0.8 mm-1.2 mm is more than 80%, the bulk density is required to be 0.7 g / cm 3 -0.9 g / cm 3 , and the single particle strength is required to be 20-50 N.

[0015] A manufacturing method of a special accumulated abrasive belt for polishing titanium alloy materials, comprising the following steps:

[0016] S1, preparing a modified base material of cloth base, gradually mixing 30-50 parts of sodium tetraborate modified phenolic resin, 80-120 parts of filler and 0.1-1 parts of dispersing agent into 100 parts of emulsion, adjusting the viscosity to 2000CPS-3000CPS, PH>7, then continuously stirring the mixture uniformly to prepare a cloth base treatment slurry and injecting it into an impregnation tank, passing the base material through the impregnation tank, rolling it under a certain extrusion pressure, fully impregnating the glue into the polyester fiber, then drying and entering an oven for high-temperature setting and winding to prepare the modified base material of cloth base;

[0017] S2, preparing a primer, gradually mixing 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersing agent and 10-30 parts of heat dissipating agent into 100 parts of super-molecular polyethylene grafted modified phenolic resin, uniformly mixing to prepare the primer for use;

[0018] S3, the prepared primer is uniformly coated on the cloth-based modified substrate at a coating amount of 300-500 g / m 2 , and a silicon carbide sand filling operation is performed on the primer, with the sand filling amount controlled at 500-800 g / m 2 . The size of the accumulated abrasive particles is greater than or equal to 80% in the range of φ0.8mm-1.2mm, the bulk density is required to be 0.7g / cm 3 -0.9g / cm 3 , and the single particle strength is required to be 20-50N;

[0019] S4, a pre-drying operation is performed to pre-dry the primer with sand filling at a drying temperature of 85-110℃ for 3-6h;

[0020] S5, a compound adhesive is prepared by gradually and uniformly mixing 10-30 parts of polytetrafluoroethylene powder, 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersing agent and 10-30 parts of heat dissipation agent into 100 parts of resin, and uniformly mixing to prepare the compound adhesive;

[0021] S6, the prepared compound adhesive is uniformly coated on the sand layer at a coating amount of 300-500 g / m 2 ;

[0022] S7, a main drying operation is performed to heat and dry the coated compound adhesive at a drying temperature of 90-120℃ for 24-48h, so as to complete the preparation of the titanium alloy material polishing special accumulated abrasive sand belt.

[0023] The present application has the following beneficial effects compared with the prior art: (1) The sodium tetraborate modified phenolic resin introduces inorganic boron element in the molecular structure of the phenolic resin. The boron phenolic resin is more excellent in heat resistance, instantaneous high temperature resistance and mechanical properties than the phenolic resin. The heat resistance, instantaneous high temperature resistance and ablation resistance of the boron modified phenolic resin are much better than those of the ordinary phenolic resin. The use of the sodium tetraborate modified phenolic resin in the slurry can effectively improve the thermal stability of the substrate;

[0024] (2) The primer requires good adhesion with the abrasive and the substrate. The accumulated abrasive is a porous composite abrasive, and it is also required to avoid or reduce the entry into the interior of the abrasive. The ultrahigh molecular polyethylene grafted modified phenolic resin receives ultrahigh molecular weight polyethylene on the branched chain of the phenolic resin, which is a resin with very large molecular weight, and can effectively reduce the flow of the resin into the interior of the abrasive;

[0025] (3) The polytetrafluoroethylene powder is added into the rubber compound as a lubricant. The polytetrafluoroethylene is a high polymer material with the best self-lubricating property. In the grinding process, the polytetrafluoroethylene can reduce the friction coefficient between the abrasive belt and the titanium alloy surface, reduce the generation of cutting heat, improve the self-lubricating property of the abrasive belt itself, reduce the adhesion of titanium alloy grinding dust, and the substance itself contains fluorine element, which can also play a role in heat dissipation. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0027] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, can also be integrated; can be mechanical connection, can also be electrical connection, can also be communication connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The technical solutions of the present application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments.

[0030] A special accumulation abrasive belt for polishing titanium alloy materials, comprising a modified base material, a primer, a sand layer and a rubber compound,

[0031] The base cloth modified base material includes a base material treated by a base cloth treatment slurry, and the base cloth treatment slurry includes, in parts by weight, 100 parts of an emulsion, 30-50 parts of sodium tetraborate modified phenolic resin, 80-120 parts of a filler, and 0.1-1 part of a dispersing agent, and the emulsion includes any one of butyronitrile, butylbenzene, white emulsion, acrylic acid, polyvinyl chloride, and polyurethane or a mixture of two or more thereof;

[0032] The primer includes, in parts by weight, 100 parts of ultrahigh molecular polyethylene grafted modified phenolic resin, 80-200 parts of a filler, 0.5 parts of a silane coupling agent, 0.1-1 parts of a dispersing agent, and 10-30 parts of a heat dissipation agent;

[0033] The sand layer includes a silicon carbide stacked abrasive layer, and in the silicon carbide stacked abrasive layer, the sanding amount is controlled to be 500-800 g / m 2 The proportion of stacked abrasive particles with a size of φ0.8 mm-1.2 mm is more than 80%, the bulk density is required to be 0.7 g / cm 3 -0.9 g / cm 3 , and the single particle strength is required to be 20-50 N;

[0034] The rubber compound includes, in parts by weight, 100 parts of resin, 10-30 parts of polytetrafluoroethylene powder, 80-200 parts of a filler, 0.5 parts of a silane coupling agent, 0.1-1 parts of a dispersing agent, and 10-30 parts of a heat dissipation agent;

[0035] The heat dissipation agent in the primer and the rubber compound includes one or more of sodium fluoride, calcium fluoride, potassium fluoborate, and chlorinated paraffin;

[0036] The filler in the base cloth treatment slurry, the primer, and the rubber compound includes any one of calcium carbonate, wollastonite, talc powder, and calcium sulfate or a mixture of two or more thereof.

[0037] Embodiment 1: A manufacturing method of a stacked abrasive belt special for polishing titanium alloy materials, including the following steps:

[0038] S1, preparing a base cloth modified base material, gradually mixing 30 parts of sodium tetraborate modified phenolic resin, 80 parts of wollastonite, and 0.1 parts of a dispersing agent into 100 parts of white emulsion, adjusting the viscosity to 2000 CPS, and the PH value is greater than 7, then continuously stirring the mixture to prepare a base cloth treatment slurry and injecting it into an impregnation tank, and then impregnating the base material in the impregnation tank under a certain extrusion pressure to make the glue fully enter the polyester fiber, and then drying and entering an oven for high-temperature setting and winding to prepare the base cloth modified base material;

[0039] S2, preparing a primer, gradually mixing 80 parts of wollastonite, 0.5 parts of a silane coupling agent, 0.1 parts of a dispersing agent, and 10 parts of potassium fluoborate into 100 parts of ultrahigh molecular polyethylene grafted modified phenolic resin, and uniformly mixing to prepare the primer for use.

[0040] S3, the prepared primer is uniformly coated on the cloth base modified substrate at a coating amount of 300 g / m 2 , and a silicon carbide sand filling operation is performed on the primer, with the sand planting amount controlled at 500 g / m 2 . The proportion of abrasive particles with a size of φ0.8 mm in the abrasive particles is more than 80%, and the bulk density is required to be 0.7 g / cm 3 , and the single particle strength is required to be 20 N;

[0041] S4, a pre-drying operation is performed, and the primer after sand planting is pre-dried at a drying temperature of 85°C for 3h;

[0042] S5, a compound adhesive is prepared, 10 parts of polytetrafluoroethylene powder, 80 parts of wollastonite, 0.5 parts of silane coupling agent, 0.1 parts of dispersant and 10 parts of potassium fluoborate are gradually and uniformly mixed into 100 parts of resin to uniformly mix the compound adhesive;

[0043] S6, the prepared compound adhesive is uniformly coated on the sand layer at a coating amount of 300 g / m 2 ;

[0044] S7, a main drying operation is performed, and the coated compound adhesive is heated and dried at a drying temperature of 90°C for 24h, so as to complete the preparation of the special abrasive sand belt for titanium alloy material polishing.

[0045] Embodiment 2: a manufacturing method of a special abrasive sand belt for titanium alloy material polishing, comprising the following steps:

[0046] S1, a cloth base modified substrate is prepared, 50 parts of sodium tetraborate modified phenolic resin, 120 parts of a combination of calcium carbonate and calcium sulfate and 1 part of dispersant are gradually mixed into 100 parts of a combination of butyronitrile and polyvinyl chloride, the viscosity is adjusted to 3000CPS, the PH value is >7, then the mixture is continuously stirred and uniformly prepared into cloth base treatment slurry and injected into an impregnation tank, the substrate is impregnated in the impregnation tank under a certain extrusion pressure, the glue is fully entered into the polyester fiber, then dried and enters an oven for high temperature setting and winding, so as to prepare the cloth base modified substrate;

[0047] S2, a primer is prepared, 200 parts of talcum powder, 0.5 parts of silane coupling agent, 1 part of dispersant and 30 parts of a combination of potassium fluoborate and chlorinated paraffin are gradually mixed into 100 parts of ultra-high molecular polyethylene grafted modified phenolic resin, and uniformly mixed to prepare the primer;

[0048] S3, the prepared primer is uniformly coated on the cloth base modified substrate at a coating amount of 500 g / m 2 , and a silicon carbide sand filling operation is performed on the primer, with the sand planting amount controlled at 800 g / m 2The proportion of the size of the abrasive particles in the range of φ1.2mm is more than 80%, and the bulk density is required to be 0.9g / cm 3 , and the single particle strength is required to be 0N;

[0049] S4, performing pre-drying operation, and pre-drying the bottom glue with sanding completed at a drying temperature of 110℃ for 6h;

[0050] S5, preparing the complex glue, and gradually and uniformly mixing 30 parts of polytetrafluoroethylene powder, 200 parts of talcum powder, 0.5 parts of silane coupling agent, 1 part of dispersant and 30 parts of potassium fluoborate into 100 parts of resin to uniformly mix to prepare the complex glue;

[0051] S6, uniformly coating the prepared complex glue on the sanding layer at a coating amount of 500g / m 2 ;

[0052] S7, performing main drying operation, and heating and drying the coated complex glue at a drying temperature of 120℃ for 48h to complete the preparation of the special accumulation abrasive belt for polishing titanium alloy materials.

[0053] Embodiment 3: a manufacturing method of a special accumulation abrasive belt for polishing titanium alloy materials, comprising the following steps:

[0054] S1, preparing the modified base material of the cloth base, gradually mixing 39 parts of sodium tetraborate modified phenolic resin, 95 parts of wollastonite and 0.4 parts of dispersant into 100 parts of the combination of acrylic acid and polyvinyl chloride, adjusting the viscosity to 2400CPS and the PH value to be greater than 7, then continuously stirring the mixture to uniformly prepare the cloth base treatment slurry and inject it into the dipping tank, and the base material is clamped in the dipping tank under a certain extrusion pressure to fully dip the glue into the polyester fiber, and then dried and enters the oven for high temperature setting and winding to prepare the modified base material of the cloth base;

[0055] S2, preparing the bottom glue, gradually mixing 120 parts of wollastonite, 0.5 parts of silane coupling agent, 0.4 parts of dispersant and 17 parts of potassium fluoborate into 100 parts of ultra-high molecular polyethylene grafted modified phenolic resin to uniformly mix to prepare the bottom glue for standby use;

[0056] S3, uniformly coating the prepared bottom glue on the modified base material of the cloth base at a coating amount of 380g / m 2 , and performing the silicon carbide sanding operation on the bottom glue, and the sanding amount is controlled to be 600g / m 2 . The proportion of the size of the abrasive particles in the range of φ0.94mm is more than 80%, and the bulk density is required to be 0.78g / cm 3 , and the single particle strength is required to be 30N;

[0057] S4, performing pre-drying operation, and pre-drying the bottom glue with sanding completed at a drying temperature of 90℃ for 5.2h;

[0058] S5, preparation of the rubber, 14 parts of polytetrafluoroethylene powder, 120 parts of wollastonite, 0.5 parts of silane coupling agent, 0.3 parts of dispersant and 14 parts of potassium fluoborate are gradually and uniformly mixed into 100 parts of resin, and the rubber is prepared by uniform mixing;

[0059] S6, the prepared rubber is uniformly coated on the sand layer at a coating amount of 380g / m 2 ;

[0060] S7, performing main drying operation, heating and drying the completed coated rubber at a drying temperature of 92℃ for 44h, thereby completing the preparation of the titanium alloy material polishing special accumulation abrasive belt.

[0061] Example 4: a manufacturing method of a titanium alloy material polishing special accumulation abrasive belt, comprising the following steps:

[0062] S1, preparation of the cloth base modified base material, 42 parts of sodium tetraborate modified phenolic resin, 80-120 parts of calcium sulfate and 0.8 parts of dispersant are mixed into 100 parts of butadiene styrene, the viscosity is adjusted to 2800CPS, the PH value is >7, then the mixture is continuously stirred uniformly to prepare a cloth base treatment slurry and injected into an impregnation tank, the base material is impregnated in the impregnation tank under a certain extrusion pressure, the glue is fully entered into the polyester fiber, then dried and enters the oven for high temperature setting and winding, to prepare the cloth base modified base material;

[0063] S2, preparation of the primer, 180 parts of calcium sulfate, 0.5 parts of silane coupling agent, 0.9 parts of dispersant and 28 parts of sodium fluoride are gradually mixed into 100 parts of ultra-high molecular polyethylene grafted modified phenolic resin, and the primer is prepared by uniform mixing;

[0064] S3, the prepared primer is uniformly coated on the cloth base modified base material at a coating amount of 460g / m 2 , and the silicon carbide sand filling operation is performed on the primer, and the sanding amount is controlled at 740g / m 2 . The proportion of the accumulation abrasive particles with a size of φ1.1mm is more than 80%, the bulk density is required to be 0.85g / cm 3 , and the single particle strength is required to be 45N;

[0065] S4, performing pre-drying operation, pre-drying the completed sanding primer at a drying temperature of 105℃ for 4.2h;

[0066] S5, preparation of the rubber, 14 parts of polytetrafluoroethylene powder, 120 parts of wollastonite, 0.5 parts of silane coupling agent, 0.3 parts of dispersant and 14 parts of potassium fluoborate are gradually and uniformly mixed into 100 parts of resin, and the rubber is prepared by uniform mixing;

[0067] S6, the prepared rubber is uniformly coated on the sand layer at a coating amount of 380g / m2 The coating is uniformly coated on the sand layer;

[0068] S7, performing main drying operation, heating and drying the rubber coating finished coating at a drying temperature of 110°C for 30h, thereby finishing the preparation of the titanium alloy polishing special accumulation abrasive belt.

[0069] Comparative Example 1: The ordinary cloth base is used to process the bottom glue, sand filling and rubber coating according to the above method.

[0070] Comparative Example 2: The cloth base modified substrate processed by the above method is used as the base cloth, and the traditional method is used to process the silicon carbide accumulation abrasive belt.

[0071] Comparative Example 3: The traditional accumulation abrasive belt is used.

[0072] The cloth base modified substrate in Examples 1, 2, 3 and 4 is compared with the ordinary cloth base for testing the longitudinal strength, transverse strength, longitudinal elongation, transverse elongation, 600N longitudinal elongation and 600N transverse elongation under normal temperature and 120°C use environment. The comparison data under normal temperature test are as follows:

[0073]

[0074]

[0075] The comparison data under 120°C use environment test are as follows:

[0076]

[0077] It can be seen that under normal temperature condition, the cloth base modified substrate has a small improvement in the conventional performance, but after heating test, the radial strength and transverse strength of the cloth base modified substrate shaped by special treatment method are increased by about 12%, the elongation is decreased by about 30%, and the 600N elongation is decreased by about 27%, which basically eliminates the possibility of belt deformation, and the heat resistance of the cloth base is obviously improved.

[0078] Examples 1, 2, 3 and 4 are compared with Comparative Examples 1, 2 and 3 for testing the titanium alloy plate polishing area per unit area of the belt, and the test results are as follows:

[0079] Grinding area (m 2 )]]> Example 1 120 Example 2 108 Example 3 112 Example 4 118 Comparative Example 1 82 Comparative Example 2 72 Comparative Example 3 24

[0080] It can be seen that the polishing area of the product when polishing the titanium alloy plate can reach 100-120m 2 which is about 4-6 times of the ordinary belt, and the product prepared by the present application can effectively maintain the removal rate of the abrasive when grinding the titanium alloy.

[0081] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height. In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example.

[0082] Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0083] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A special abrasive belt for polishing titanium alloy materials, characterized in that: Includes a cloth-modified substrate, a base coat, a sand-coated layer, and a top coat. The fabric-modified substrate includes a substrate treated with a fabric-based treatment slurry, wherein the fabric-based treatment slurry comprises, by weight, 100 parts of emulsion, 30-50 parts of sodium tetraborate-modified phenolic resin, 80-120 parts of filler, and 0.1-1 parts of dispersant. The primer comprises, by weight, 100 parts of ultra-high molecular weight polyethylene grafted modified phenolic resin, 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersant, and 10-30 parts of heat dissipation agent; The sand-coated layer includes a silicon carbide deposited abrasive layer; The composite adhesive comprises, by weight, 100 parts resin, 10-30 parts polytetrafluoroethylene powder, 80-200 parts filler, 0.5 parts silane coupling agent, 0.1-1 parts dispersant, and 10-30 parts heat dissipation agent.

2. The abrasive belt for polishing titanium alloy materials according to claim 1, characterized in that: The emulsion includes any one or a mixture of two or more of nitrile, styrene-butadiene, white latex, acrylic acid, polyvinyl chloride, and polyurethane.

3. The abrasive belt for polishing titanium alloy materials according to claim 1, characterized in that: The filler includes any one or a mixture of two or more of calcium carbonate, wollastonite, talc, and calcium sulfate.

4. The abrasive belt for polishing titanium alloy materials according to claim 1, characterized in that: The heat dissipation agent includes one or more of sodium fluoride, calcium fluoride, potassium fluoroborate, and chlorinated paraffin.

5. The abrasive belt for polishing titanium alloy materials according to claim 1, characterized in that: In the silicon carbide abrasive layer, the amount of sand implanted is controlled at 500-800 g / m². 2 The proportion of abrasive particles with a size ranging from φ0.8mm to 1.2mm should be over 80%, and the bulk density should be 0.7g / cm³. 3 ~0.9g / cm 3 The strength requirement for a single particle is 20-50 N.

6. A method for manufacturing a special abrasive belt for polishing titanium alloy materials as described in any one of claims 1 to 5, characterized in that: Includes the following steps: S1. Prepare the fabric-based modified substrate by gradually mixing 30-50 parts of sodium tetraborate-modified phenolic resin, 80-120 parts of filler and 0.1-1 parts of dispersant into 100 parts of emulsion, adjusting the viscosity to 2000-3000 CPS and the pH value to >7. Then, continuously stir the mixture to prepare a fabric-based treatment slurry and inject it into the impregnation tank. The substrate is then fully impregnated under a certain extrusion pressure through the impregnation tank to allow the adhesive to fully penetrate the polyester fiber. After drying, it is placed in the drying oven for high-temperature setting and then wound up to produce the fabric-based modified substrate. S2. Prepare the primer by gradually mixing 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersant and 10-30 parts of heat dissipation agent into 100 parts of ultra-high molecular weight polyethylene grafted modified phenolic resin and mixing them evenly to prepare the primer for later use. S3. Apply the prepared base adhesive at a concentration of 300-500 g / m 2 The coating is evenly applied to the fabric-modified substrate, and silicon carbide sand filling is performed on the primer, with the sand filling amount controlled at 500-800 g / m². 2 The proportion of abrasive particles with a size ranging from φ0.8mm to 1.2mm should be over 80%, and the bulk density should be 0.7g / cm³. 3 ~0.9g / cm 3 The strength requirement for a single particle is 20–50 N; S4. Perform pre-drying operation, and pre-dry the base adhesive after sand planting at a drying temperature of 85-110℃ for 3-6 hours. S5. Prepare the composite adhesive by gradually and evenly mixing 10-30 parts of polytetrafluoroethylene powder, 80-200 parts of filler, 0.5 parts of silane coupling agent, 0.1-1 parts of dispersant and 10-30 parts of heat dissipation agent into 100 parts of resin and mixing evenly to prepare the composite adhesive. S6. Apply the prepared composite adhesive at a concentration of 300-500 g / m 2 The coating amount is evenly applied to the sand layer; S7. Perform the main drying operation, heat and dry the coated adhesive at a drying temperature of 90-120℃ for 24-48 hours to complete the preparation of the special deposited abrasive belt for polishing titanium alloy materials.

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