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Forging cloth with improved uniformity of titanium alloy surface structure and preparation method thereof

A technology of surface structure and titanium alloy, applied in the field of forging cloth, can solve the problems such as the thermal insulation effect cannot meet the forging requirements of ultra-high-strength titanium alloy, the large temperature difference, and the poor thermal insulation effect, so as to reduce the temperature difference and eliminate the surface The formation of uneven tissue, the effect of reducing uneven lubrication

Active Publication Date: 2022-07-19
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of forging cloth has the effect of heat preservation and lubrication to a certain extent, but because the heat insulation effect is not strong, when the high temperature forging is put into the mold cavity, the surface temperature of the forging drops rapidly, resulting in a gap between the core and the surface of the forging. Large temperature difference, so its heat preservation effect cannot meet the forging requirements of ultra-high-strength titanium alloys

Method used

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  • Forging cloth with improved uniformity of titanium alloy surface structure and preparation method thereof
  • Forging cloth with improved uniformity of titanium alloy surface structure and preparation method thereof

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preparation example Construction

[0042] In order to solve the second technical problem of the present invention, the preparation method of the forging cloth with improved titanium alloy surface structure uniformity includes:

[0043] Apply the water-based graphite lubricant with a mass concentration of 10 to 20% on any plane of the fiber layer 2 evenly. After drying, use the adhesive to bond the other plane of the fiber layer 2 and the thermal insulation cotton layer 4 with the adhesive 3. Bonded to obtain forging cloth with improved uniformity of titanium alloy surface structure;

[0044] The method for evenly smearing the water-based graphite lubricant is preferably spraying;

[0045] The drying method is preferably at least one of air-drying, drying and sun-drying.

[0046] like figure 2 As shown, in order to solve the third technical problem of the present invention, the application method of the forging cloth with improving the uniformity of the titanium alloy surface structure includes a die 5 and a fo...

Embodiment 1

[0051] Take a piece of glass fiber cloth with a thickness of 2mm; use water to prepare 1L of graphite lubricant solution with a graphite mass concentration of 20%, spray the prepared graphite lubricant solution on the front of the fiber cloth evenly with a spray gun, air dry it naturally, and the graphite layer is uniform. It is attached to one side of the fiber cloth, the thickness of the graphite layer is about 1mm, and the other side of the fiber cloth is bonded to the insulation cotton with a thickness of 5mm with polyurethane resin adhesive. figure 1 The thickness of the adhesive 3 is 0.5 mm.

[0052] The prepared forging cloth with improved surface structure uniformity of titanium alloy is figure 2 The structure shown is installed for aerospace high-strength titanium forging. Prepare two forging cloths for production, first put one of them in the cavity of the lower mold, the side with graphite contacts the mold, put the heated high-temperature forging blank into the m...

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Abstract

The invention relates to a forging cloth, in particular to a forging cloth capable of improving the uniformity of the titanium alloy surface layer structure, and belongs to the technical field of forging. The forging cloth with improved uniformity of titanium alloy surface structure of the present invention comprises a graphite layer, a fiber layer, a binder and a thermal insulation cotton layer, and the graphite layer is uniformly attached to any plane of the fiber layer; the fibers The other plane of the layer is fixed with the insulating cotton layer by the adhesive. The invention can effectively reduce the friction force, increase the temperature of the forging, reduce the forming pressure, reduce the temperature difference between the forging and the die, eliminate the formation of uneven surface structure of the ultra-high-strength titanium alloy, and effectively reduce the defective rate caused by uneven lubrication. . Eliminate the cold die structure on the surface of the forging, improve the surface quality and service life of the die. It can shorten the forging time and increase the productivity.

Description

technical field [0001] The invention relates to a forging cloth, in particular to a forging cloth capable of improving the uniformity of the titanium alloy surface layer structure, and belongs to the technical field of forging. Background technique [0002] Ultra-high-strength titanium alloys have the advantages of high strength, high toughness, high plasticity and good hardenability. With the continuous development of aerospace, in order to reduce the weight of aircraft, ultra-high-strength titanium alloys are used in various types of aircraft bodies and landing gear. It has been widely used in large load-bearing parts. At present, the die forging process above the transformation point is mainly used in the production of ultra-high-strength titanium alloys to obtain excellent fracture toughness. [0003] During forging, forgings often have problems such as insufficient filling and uneven surface structure. The main reason for the unsatisfactory filling is that the ultra-h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J13/00B21J3/00B32B17/02B32B17/12B32B9/02B32B9/04B32B7/12B32B37/12
CPCB21J13/00B21J3/00B32B5/02B32B7/12B32B5/26B32B37/12B32B2262/062B32B2255/02B32B2255/20B32B2262/101B32B2307/304
Inventor 罗恒军曾德涛向伟谢静袁武华
Owner HUNAN UNIV