CN113500160A - Forging cloth capable of improving uniformity of titanium alloy surface structure and preparation method thereof - Google Patents
Forging cloth capable of improving uniformity of titanium alloy surface structure and preparation method thereof Download PDFInfo
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- CN113500160A CN113500160A CN202110901152.9A CN202110901152A CN113500160A CN 113500160 A CN113500160 A CN 113500160A CN 202110901152 A CN202110901152 A CN 202110901152A CN 113500160 A CN113500160 A CN 113500160A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J3/00—Lubricating during forging or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to a forging cloth, in particular to a forging cloth capable of improving the uniformity of a titanium alloy surface structure, and belongs to the technical field of forging and pressing. The forging cloth capable of improving the uniformity of the surface structure of the titanium alloy comprises a graphite layer, a fiber layer, a binder and a heat-insulating cotton layer, wherein the graphite layer is uniformly attached to any one plane of the fiber layer; and the other plane of the fiber layer is fixed with the heat-insulating cotton layer through a bonding agent. The invention can effectively reduce the friction force, improve the temperature of the forging piece so as to reduce the forming pressure, reduce the temperature difference between the forging piece and the die, eliminate the uneven formation of the surface structure of the ultrahigh-strength titanium alloy and effectively reduce the defective rate caused by uneven lubrication. The cold die structure on the surface of the forging is eliminated, the surface quality of the die is improved, and the service life of the die is prolonged. The forging time can be shortened and the productivity can be improved.
Description
Technical Field
The invention relates to a forging cloth, in particular to a forging cloth capable of improving the uniformity of a titanium alloy surface structure, and belongs to the technical field of forging and pressing.
Background
The ultrahigh-strength titanium alloy has the advantages of high strength, high toughness, high plasticity, good hardenability and the like, and along with the continuous development of aerospace, in order to reduce the weight of an airplane, the ultrahigh-strength titanium alloy is widely applied to various airplane bodies and large bearing parts of landing gears. At present, the ultrahigh strength titanium alloy is mainly forged by a die forging process above a phase transformation point so as to obtain excellent fracture toughness.
During forging, the forging often has the problems of underfilling, uneven surface texture and the like. The main reasons for the insufficient filling are that the ultrahigh-strength titanium alloy has high strength and large deformation resistance, the surface texture is uneven because the forging piece is forged above a phase transformation point, the temperature of the forging piece is high, the temperature of a die is low, the temperature difference between the forging piece and the die is large, a chilling layer is formed on the surface of the forging piece in the forging process, the surface texture and the core texture are uneven, and the surface texture is uneven to reduce the mechanical property of the surface of the forging piece.
In order to solve the problems, the traditional method is to adopt lubricating liquid plus heat-insulating cloth or lubricating liquid plus heat-insulating surface. The method mainly uses a lubricant to reduce the forming pressure and increase the metal filling capacity to solve the problem of insufficient filling, and specifically comprises the step of directly spraying the diluted lubricant on the surface of a die. However, because of the high temperature of the die and the high content of the liquid components of the lubricant, the lubricant sprayed on the surface of the die is easy to form a spherical shape and roll continuously, and most of the lubricant finally falls into the bottom of the die cavity. The uneven lubrication mode often causes that graphite is difficult to effectively adhere to the side wall of the cavity, the lubrication effect is weakened, and a large amount of graphite is accumulated in the deep part of the cavity in severe cases, so that the forging is not filled fully to form inferior-quality products or even is scrapped. The traditional heat preservation measures are that heat preservation cotton or heat preservation cloth is used only, the heat preservation cotton has good effect, but a plurality of fine hard particles are left after the heat preservation cotton is compressed and combusted in the forming process, and the particles have no lubricating effect but increase friction to enable the forming pressure to rise rapidly; the traditional heat-insulating cloth has a certain heat-insulating effect, but still can not effectively solve the problem of the uniformity of the surface structure of the ultrahigh-strength titanium alloy. In order to solve the problem of surface structure uniformity, the amount of a forge piece machining allowance needs to be increased, but the method greatly increases the weight of the forge piece, and the material utilization rate is low.
Therefore, the development of the forging cloth capable of improving the uniformity of the surface structure of the titanium alloy in the forging process is of great significance.
The Chinese patent application with the application number of 200520039486.6 discloses 'adhesive heat insulation cotton', and the Chinese patent application with the application number of 200510023801.0 discloses 'adhesive heat insulation cotton and a preparation method thereof', wherein in the patent applications, a forge piece and ceramic fibers are bonded through double adhesives and glass powder, then are placed in a furnace for heating, and then are forged. The binder and the glass powder are easy to release carbon dioxide, water vapor and the like at high temperature to form bubbles, so that a continuous, uniform and compact lubricating layer cannot be formed on the surface of the forging, the due lubricating effect cannot be exerted, the product surface quality of the forging is influenced, and the requirement on the binder is higher.
The application number 201711352339.8 discloses a fiber cloth for forging with lubricating and heat-insulating functions, which comprises a fiber layer and a graphite layer, wherein the graphite layer is uniformly attached to any one plane of the fiber layer. The thickness of the fiber layer is preferably 1-2 mm, and the thickness of the graphite layer is 0.5-1 mm. This kind of forge with cloth has played heat preservation and lubricated effect to a certain extent, nevertheless because thermal-insulated effect is not strong, when the mould die cavity was put into to the high temperature forging, forging surface temperature descends fast, leads to forging core and surface still to have great temperature difference, therefore its heat preservation effect can not satisfy the forging demand of super high strength titanium alloy.
Disclosure of Invention
The invention aims to solve the first technical problem of providing forging cloth capable of improving the uniformity of a surface structure of a titanium alloy.
In order to solve the first technical problem, the forging cloth capable of improving the uniformity of the surface structure of the titanium alloy comprises a graphite layer, a fiber layer, a binder and a heat-insulating cotton layer, wherein the graphite layer is uniformly attached to any one plane of the fiber layer; and the other plane of the fiber layer is fixed with the heat-insulating cotton layer through a bonding agent.
In a specific embodiment, the thickness of the heat preservation cotton is within 5mm, and is not 0mm, and preferably 4-5 mm.
In one embodiment, the binder is a colloidal binder.
In one embodiment, the binder is at least one of a polyurethane resin, a methylcellulose, and an acrylic resin.
In a specific embodiment, the thickness of the fiber layer is 1-3 mm, the thickness of the graphite layer is 0.5-1 mm, and the thickness of the binder is 0.1-0.5 mm.
In a specific embodiment, the manufacturing method of the forging cloth for improving the uniformity of the titanium alloy surface structure comprises the steps of uniformly coating a water-based graphite lubricant with the mass concentration of 10-20% on any one plane of a fiber layer, drying, and bonding the other plane of the fiber layer and an insulation cotton layer by using a bonding agent to obtain the forging cloth for improving the uniformity of the titanium alloy surface structure;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
In one embodiment, the fiber layer is made of glass fiber cloth.
The second technical problem to be solved by the invention is to provide a preparation method of the forging cloth for improving the uniformity of the surface structure of the titanium alloy.
In order to solve the second technical problem of the present invention, the method for preparing the forging cloth capable of improving the uniformity of the surface structure of the titanium alloy comprises the following steps:
uniformly coating a water-based graphite lubricant with the mass concentration of 10-20% on any one plane of the fiber layer, drying, and bonding the other plane of the fiber layer and the heat-preservation cotton layer by using a bonding agent to obtain the forging cloth with the titanium alloy surface structure uniformity improved;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
The third technical problem to be solved by the invention is to provide an application method of forging cloth capable of improving the uniformity of the surface structure of the titanium alloy.
In order to solve the third technical problem, the application method of the forging cloth for improving the uniformity of the titanium alloy surface structure comprises a die and a forging piece, wherein the graphite layer surface of the forging cloth for improving the uniformity of the titanium alloy surface structure is contacted with the die, and the heat preservation cotton layer surface of the forging cloth for improving the uniformity of the titanium alloy surface structure is contacted with the forging piece; the forging is preferably a medium strength titanium alloy or an ultra-high strength titanium alloy.
In one embodiment, the cloth is shaped and sized to fit the mold.
Has the advantages that: according to the key control point of reducing pressure during forging, friction force and forging temperature, one side with the graphite lubricant is in contact with the die to reduce friction, and one side with the heat insulation cotton is in contact with the forging to improve the forging temperature. By adopting the method, the friction force can be effectively reduced, the temperature of the forging is increased, the forming pressure is reduced, the temperature difference between the forging and the die is reduced, the uneven formation of the surface structure of the ultrahigh-strength titanium alloy is eliminated, meanwhile, the graphite lubricant is uniformly smeared on the fiber cloth in advance, so that the whole forging process is simplified, and the defective rate caused by uneven lubrication is effectively reduced.
The heat-insulating cloth synthesized by the method can obviously reduce the forging forming pressure of the ultrahigh-strength titanium alloy, improve the filling of a cavity, eliminate the cold die structure on the surface of a forging piece, improve the surface quality of a die and prolong the service life of the die.
Because the manufacture is simple and easy to learn, the forging device has no special field requirement, can be widely applied to various forging fields, has short time consumption, can shorten the forging time and improve the productivity.
The binder 3 can not release gas during forging under the structure, so that the surface quality of the product of the forging is not affected.
Drawings
FIG. 1 is a structural view of a forging cloth having improved uniformity of a surface structure of a titanium alloy;
FIG. 2 is a schematic view showing the use of a forging cloth for improving the uniformity of the surface structure of a titanium alloy.
1-a graphite layer; 2-a fibre layer; 3-a binder; 4-heat preservation cotton layer; 5-molding; 6-forging.
Detailed Description
In order to solve the first technical problem, the forging cloth for improving the uniformity of the surface structure of the titanium alloy of the present invention comprises, as shown in fig. 1, a graphite layer 1, a fiber layer 2, a binder 3 and a heat insulating cotton layer 4, wherein the graphite layer 1 is uniformly attached to any one plane of the fiber layer 2; the other plane of the fiber layer 2 is fixed with the heat preservation cotton layer 4 through the adhesive 3.
In a specific embodiment, the thickness of the heat preservation cotton is within 5mm, and is not 0mm, and preferably 4-5 mm.
In one embodiment, the binder 3 is a colloidal binder.
In a specific embodiment, the binder 3 is at least one of polyurethane resin, methylcellulose and acrylic resin.
In a specific embodiment, the thickness of the fiber layer 2 is 1-3 mm, the thickness of the graphite layer 1 is 0.5-1 mm, and the thickness of the binder 3 is 0.1-0.5 mm.
In a specific embodiment, the manufacturing method of the forging cloth for improving the uniformity of the titanium alloy surface structure comprises the steps of uniformly coating a water-based graphite lubricant with the mass concentration of 10-20% on any one plane of a fiber layer 2, drying, and bonding the other plane of the fiber layer 2 and a heat insulation cotton layer 4 by using a bonding agent 3 to obtain the forging cloth for improving the uniformity of the titanium alloy surface structure;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
In one embodiment, the fiber layer 2 is made of glass fiber cloth.
In order to solve the second technical problem of the present invention, the method for preparing the forging cloth capable of improving the uniformity of the surface structure of the titanium alloy comprises the following steps:
uniformly coating a water-based graphite lubricant with the mass concentration of 10-20% on any one plane of the fiber layer 2, drying, and bonding the other plane of the fiber layer 2 and the heat-preservation cotton layer 4 by using a bonding agent 3 to obtain forging cloth capable of improving the uniformity of the titanium alloy surface structure;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
As shown in fig. 2, in order to solve the third technical problem of the present invention, the method for applying the forging cloth with the improved uniformity of the titanium alloy surface structure comprises a mold 5 and a forging piece 6, wherein the graphite layer 1 side of the forging cloth with the improved uniformity of the titanium alloy surface structure is contacted with the mold 5, and the heat insulating cotton layer 4 side of the forging cloth with the improved uniformity of the titanium alloy surface structure is contacted with the forging piece 6; the forging 6 is preferably a medium strength titanium alloy or an ultra high strength titanium alloy.
During forging, the forging piece 6 and the forging cloth with the titanium alloy surface structure uniformity are integrated, the graphite layer 1 on the forging cloth with the titanium alloy surface structure uniformity is in contact with the die 5, and due to the lubricating effect of the graphite layer 1, the friction force generated when the whole formed by the forging piece 6 and the cloth moves relative to the die 5 can be reduced, so that the forging pressure is reduced.
The heat-insulating cotton layer 4 of the forging cloth with the titanium alloy surface texture uniformity is in direct contact with the forging piece 6, and the fiber layer 2, the heat-insulating cotton layer 4 and the graphite layer are combined to achieve the heat-insulating effect and are lighter and thinner. The binder 3 can not release gas during forging under the structure, so that the surface quality of the product of the forging is not affected.
The following examples are provided to further illustrate the embodiments of the present invention and are not intended to limit the scope of the present invention.
Example 1
Taking a piece of glass fiber cloth with the thickness of 2 mm; preparing 1L of graphite lubricant solution with the graphite mass concentration of 20% by using clean water, uniformly spraying the prepared graphite lubricant solution on the front surface of the fiber cloth by using a spray gun, naturally drying, uniformly attaching a graphite layer to one surface of the fiber cloth, wherein the thickness of the graphite layer is about 1mm, and bonding the other side of the fiber cloth with heat-insulating cotton with the thickness of 5mm by using a polyurethane resin bonding agent, in detail, the thickness of a bonding agent 3 in figure 1 is 0.5 mm.
The prepared forging cloth capable of improving the uniformity of the surface structure of the titanium alloy is installed according to the structure shown in fig. 2 and is used for forging and forming the high-strength titanium alloy in the air. The production method comprises the steps of preparing two pieces of cloth for forging, firstly placing one piece of cloth in a lower die cavity, enabling one side with graphite to be in contact with a die, placing a heated high-temperature forging blank in the die cavity, then covering the other piece of cloth for forging on the forging blank, and enabling one side with graphite to be in contact with an upper die cavity. And controlling the pressing machine to close the die to complete the forming of the forge piece. The forging piece is well formed, the fillet is fully filled, the surface temperature of the forging piece is only reduced by about 60 ℃ compared with the initial forging blank temperature, the reduction temperature is low, the forming pressure is reduced by about 15% compared with the traditional lubricant spraying mode, and through detection, no cold die structure is generated on the surface of the forging piece, so that the forging cloth has good heat preservation and lubrication effects. After the forging is finished, the surface of the die is smooth and clean, the phenomenon of lubricant accumulation in the traditional lubricating mode is avoided, and the service life of the die is prolonged.
Comparative example 1
The conditions of the forged die, the forged piece and the like are the same as those of embodiment 1, except that the heat preservation and the lubrication adopt the scheme of the prior art, before production, diluted graphite lubricant is attached to the surface of a die cavity in a spraying mode, and a heated high-temperature forging blank is placed into the die cavity. And controlling the pressing machine to close the die to complete the forming of the forge piece. The forging is generally formed, local round corners are not fully filled, the surface temperature of the forging is reduced by about 120 ℃ compared with the temperature of an initial forging blank, the forming pressure is increased by about 15% compared with the forming pressure by adopting a forging cloth mode, and through detection, the surface structure and the core structure of the forging are inconsistent, and a cold die structure appears. After the forging is finished, the finish degree of the die is poor, and the lubricant is accumulated in the deep part of the die cavity. The reason analysis is that the heat preservation effect of the forge piece is not strong only by the coating on the surface layer of the forge piece, and meanwhile, the diluted graphite lubricant is normal-temperature liquid and has low temperature, the surface of the forge piece is directly contacted with the lubricant, the surface temperature is sharply reduced, and a cold die layer structure is formed. The graphite lubricant sprayed manually cannot be uniformly attached to the surface of the die, so that the die is not lubricated uniformly, and meanwhile, the liquid lubricant is gathered at the bottom of the die cavity, so that the line pressure of the forge piece is increased, the forge piece is not filled fully, the surface finish of the die is poor, and the service life is short.
Comparative example 2
The same fiber cloth and graphite as in 201711352339.8 was used, but the thickness of the fiber cloth was increased to 7mm, which is the total thickness of the fiber cloth and the thermal insulation cotton layer of example 1. And (3) preparing two pieces of the forging cloth, firstly placing one piece of the forging cloth in a lower die cavity, enabling one side with graphite to contact with a die, placing the heated high-temperature forging blank in the die cavity, covering the other piece of forging cloth on the forging blank, and enabling one side with graphite to contact with an upper die cavity. And controlling the pressing machine to close the die to complete the forming of the forge piece. The forging is generally formed, the fillet is not fully filled, the overall dimension of the forging is out of tolerance (smaller), the surface temperature of the forging is only reduced by about 90 ℃ compared with the initial forging stock temperature, the forming pressure is reduced by about 12% compared with the traditional lubricant spraying mode, through detection, no obvious cold die structure is generated on the surface of the forging (between the cold die structure and a normal structure), and after the forging is finished, the surface of a die is smooth and clean, and the lubricant accumulation phenomenon in the traditional lubricating mode is avoided. Reason analysis is when thickening fibre cloth thickness, and the heat preservation effect obtains certain promotion, but the heat preservation effect still not as same thickness's heat preservation cotton, and the heat preservation cotton is porous structure, and fibre cloth is more compact than the cotton organizational structure that keeps warm, and consequently equal thickness's fibre cloth compressibility is not as good as the heat preservation cotton, leads to forging back forging size whole out-of-tolerance.
Claims (10)
1. The forging cloth capable of improving the uniformity of the surface structure of the titanium alloy is characterized by comprising a graphite layer (1), a fiber layer (2), a binder (3) and a heat-insulating cotton layer (4), wherein the graphite layer (1) is uniformly attached to any one plane of the fiber layer (2); the other plane of the fiber layer (2) is fixed with the heat insulation cotton layer (4) through the adhesive (3).
2. The forging cloth capable of improving the uniformity of the surface structure of the titanium alloy as claimed in claim 1, wherein the thickness of the heat-insulating cotton is within 5mm, and is not 0mm, preferably 4-5 mm.
3. The forging cloth for improving the uniformity of the texture of the surface layer of the titanium alloy as claimed in claim 1 or 2, wherein the binder (3) is a colloidal binder.
4. The forging cloth for improving the uniformity of the surface structure of the titanium alloy according to claim 3, wherein the binder (3) is at least one of a polyurethane resin, a methyl cellulose, and an acrylic resin.
5. The forging cloth for improving the uniformity of the surface texture of the titanium alloy as claimed in claim 1 or 2, wherein the fiber layer (2) has a thickness of 1 to 3mm, the graphite layer (1) has a thickness of 0.5 to 1mm, and the binder (3) has a thickness of 0.1 to 0.5 mm.
6. The forging cloth capable of improving the uniformity of the titanium alloy surface structure according to claim 1 or 2, characterized in that the forging cloth capable of improving the uniformity of the titanium alloy surface structure is produced by uniformly coating a water-based graphite lubricant with a mass concentration of 10-20% on any one plane of the fiber layer (2), drying the water-based graphite lubricant, and bonding the other plane of the fiber layer (2) and the heat-insulating cotton layer (4) by using the bonding agent (3) to obtain the forging cloth capable of improving the uniformity of the titanium alloy surface structure;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
7. The forging cloth for improving the uniformity of the surface structure of the titanium alloy as claimed in any one of claims 1 to 6, wherein the fiber layer (2) is made of glass fiber cloth.
8. The method for preparing the forging cloth capable of improving the uniformity of the surface structure of the titanium alloy according to any one of claims 1 to 7, wherein the method comprises the following steps:
uniformly coating a water-based graphite lubricant with the mass concentration of 10-20% on any one plane of the fiber layer (2), drying, and bonding the other plane of the fiber layer (2) and the heat-preservation cotton layer (4) by using a bonding agent (3) to obtain the forging cloth capable of improving the uniformity of the titanium alloy surface structure;
the method for uniformly coating the water-based graphite lubricant is preferably spraying;
the drying method is preferably at least one of air drying, baking and sun drying.
9. The application method of the forging cloth for improving the uniformity of the surface structure of the titanium alloy according to any one of claims 1 to 7, further comprising a die (5) and a forging (6), and is characterized by comprising the following steps: contacting the graphite layer (1) surface of the forging cloth for improving the uniformity of the titanium alloy surface structure with a die (5), and contacting the heat-insulating cotton layer (4) surface of the forging cloth for improving the uniformity of the titanium alloy surface structure with a forging piece (6); the forging (6) is preferably a medium-strength titanium alloy or an ultrahigh-strength titanium alloy.
10. The application method of the forging cloth for improving the uniformity of the surface structure of the titanium alloy as claimed in claim 9, wherein the shape and size of the cloth are adapted to the die (3).
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| CN202110901152.9A CN113500160B (en) | 2021-08-06 | 2021-08-06 | Forging cloth capable of improving uniformity of titanium alloy surface structure and preparation method thereof |
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| CN202110901152.9A CN113500160B (en) | 2021-08-06 | 2021-08-06 | Forging cloth capable of improving uniformity of titanium alloy surface structure and preparation method thereof |
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| CN113500160B CN113500160B (en) | 2022-07-19 |
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| CN101070223A (en) * | 2007-06-29 | 2007-11-14 | 钢铁研究总院 | Heat-processing temperature-cntrolled heat-insulation material, its preparing method and use |
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| CN112893722A (en) * | 2021-01-15 | 2021-06-04 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Rapid forming method for GH4720Li high-temperature alloy forging |
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