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Method for processing special wires for linear bearings

A linear bearing and special-shaped technology, which is applied in the field of metal materials, can solve the problems of inability to process special-shaped wires, such as comprehensive performance requirements, and achieve the effects of solving processing difficulties, making up for the lack of cold-rolled performance, and improving straightness

Active Publication Date: 2014-07-23
BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of ordinary special-shaped wire usually adopts processing methods such as casting, extrusion molding, and soluble core technology, but none of the above methods can be processed to meet the comprehensive performance requirements of the special-shaped wire.

Method used

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  • Method for processing special wires for linear bearings
  • Method for processing special wires for linear bearings
  • Method for processing special wires for linear bearings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1Cr18Ni9 is selected as the special-shaped wire raw material, according to the technological process of hot-rolled wire rod→solution treatment→cold-drawn round wire→solution treatment→cold-rolled flat wire→solution treatment→cold-rolled special-shaped wire→straightening→heat treatment→polishing, The process parameters of the produced special-shaped wire are controlled as follows:

[0029] (1) The selected 1Cr18Ni9 alloy is forged and hot-rolled by a conventional hot-working method, and the steel ingot is forged into a square billet of a certain specification by selecting a suitable forging temperature, and then hot-rolled into a wire rod of the required specification, and then solid solution treated. Use this as the blank for the next step of cold processing;

[0030] (2) Cold-drawn the hot-rolled wire rod. The specifications of the cold-drawn round wire are φ3.8mm (core slider 1) and φ4.3mm (fixed slider 2). Solution treatment is carried out after cold drawing, and the...

Embodiment 2

[0037] 1Cr17Ni7 is selected as the alloy material, according to the process flow of hot-rolled wire rod→solution treatment→cold-drawn round wire→solution treatment→cold-rolled flat wire→solution treatment→cold-rolled special-shaped wire→straightening→heat treatment→polishing process, production The special-shaped wire process parameters are controlled as follows:

[0038] (1) The selected 1Cr17Ni7 alloy is forged and hot-rolled by conventional hot-working methods, and the steel ingot is forged into a square billet of a certain specification by selecting a suitable forging temperature, and then hot-rolled into a wire rod of the required specification, and then solid solution treated. Use this as the blank for the next step of cold processing;

[0039](2) Cold-drawn the hot-rolled wire rod. The specifications of the cold-drawn round wire are φ6.0mm (core slider 1) and φ5.0mm (fixed slider 2). Solution treatment is carried out after cold drawing, and then rolled Make a flat wire...

Embodiment 3

[0046] 1Cr18Ni12 is selected as the alloy material, according to the technological process of hot-rolled wire rod→solution treatment→cold-drawn round wire→solution treatment→cold-rolled flat wire→solution treatment→cold-rolled special-shaped wire→straightening→heat treatment→polishing process, production The special-shaped wire process parameters are controlled as follows:

[0047] (1) The selected 1Cr18Ni12 alloy is forged and hot-rolled by a conventional hot-working method, and the steel ingot is forged into a square billet of a certain specification by selecting a suitable forging temperature, and hot-rolled into a wire rod of a required specification, and then subjected to solution treatment. Use this as the blank for the next step of cold processing;

[0048] (2) Cold-drawn the hot-rolled wire rod. The specifications of the cold-drawn round wire are φ6.5mm (core slider 1) and φ6.7mm (fixed slider 2). Solution treatment is carried out after cold drawing, and then rolled M...

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Abstract

A method for processing special wires for linear bearings belongs to the technical field of metallic materials. In the invention, alloy required by special wires is smelted by adopting a conventional smelting method, and is then processed into corresponding coil rods through a heat-processing process according to the product requirement; the coil rods are processed through cold drawing after being subject to solution treatment; round wires treated through cold drawing are rolled into flat wires and rolled by hole patterns corresponding to the special wires in shape, and the finished cold-rolld product is treated through straightening, heating and polishing. The invention has the advantages that compared with a simplex cold drawing process, the cold-drawing and cold-rolling processes are adopted to solve the problems that special wire dies with comparatively complicated shapes, especial local thin-thickness parts of special wire dies are processed difficultly, and the linear bearings are difficult to pass through the special wire dies, so that the special wire side bending performance is obviously improved; meanwhile, a heat-processing process after the straightening is adopted to make up the shortage of cold-rolled mechanical property, so that the produced special wires have excellent comprehensive performance; and the method can be suitable for producing high-precision special wires with different cross sectional shapes.

Description

technical field [0001] The invention relates to a processing method of a special-shaped wire for a linear bearing, belonging to the technical field of metal materials. Background technique [0002] At present, the devices for transmitting the operator's force in the known aircraft, transport vehicle mechanical devices, etc. usually use a link mechanism, but in general, the link mechanism has a complex structure, and the work efficiency is reduced. The sensitivity increases, which will cause greater vibration and dynamic load at high speed; and the shape, size and weight of connecting rod devices such as aircraft are limited in specific machinery. In order to solve the various defects of the connecting rod device, French patent Nos. EP1209371A1 and ES2247042T3 provide a linear bearing to replace the connecting rod device (the schematic diagram of the assembly structure of the linear bearing is shown in figure 1 ), the linear bearing has the advantages of high precision, free...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/04
Inventor 史世凤傅祖明秦力群孙建周鄂志英胡博炜范强李振瑞
Owner BEIJING BEIYE FUNCTIONAL MATERIALS CORP
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