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Preparation method of harness wire of automatic loom

A heald and loom technology, applied in temperature control, manufacturing tools, heat treatment equipment, etc., can solve problems such as inconvenient operation of automatic looms, product formation defects, etc., to achieve the effect of ensuring wear resistance and improving wear resistance

Inactive Publication Date: 2012-04-04
崔敏娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the operation of the automatic loom will be interrupted, or the worn parts must be replaced with new parts, causing inconvenience in the operation of the automatic loom, and in severe cases, defects will be formed on the product.

Method used

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  • Preparation method of harness wire of automatic loom
  • Preparation method of harness wire of automatic loom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of a heald of an automatic loom, the chemical composition of the heald is composed of the following elements in weight percentage: C: 0.20%, Si: 0.8%, Mn: 1.3%, P: ≤ 0.03%, S : ≤0.05%, Cr: 17.5%, W: 0.8%, Mo: 0.8%, the balance is Fe and inevitable impurities, the preparation method is: smelting according to the above components, adjusting the pouring after the components meet the requirements When the temperature reaches 1560℃, it is poured into the sand mold, and after cooling to room temperature, the sand is dropped and cleaned; then heated to 1270℃ for forging and billeting; It is a 3mm bar; then multi-pass cold drawing is performed, and intermediate annealing is performed during the drawing process, and the annealing temperature is 950 ° C until the drawing reaches the finished heald.

Embodiment 2

[0017] A preparation method of a heald of an automatic loom, the chemical composition of the heald is composed of the following elements in weight percentage: C: 0.30%, Si: 0.6%, Mn: 1.8%, P: ≤ 0.03%, S : ≤0.05%, Cr: 15%, W: 1.2%, Mo: 0.5%, the balance is Fe and inevitable impurities, the preparation method is: smelting according to the above components, adjusting the pouring after the components meet the requirements When the temperature reaches 1580℃, it is poured into the sand mold, and after cooling to room temperature, the sand is dropped and cleaned; then it is heated to 1240℃ for forging and billeting; It is a 5mm bar; then multi-pass cold drawing is performed, and intermediate annealing is performed during the drawing process, and the annealing temperature is 920 ° C until the drawing reaches the finished heald.

Embodiment 3

[0019] A preparation method of a heald of an automatic loom, the chemical composition of the heald is composed of the following elements in weight percentage: C: 0.22%, Si: 0.75%, Mn: 1.4%, P: ≤ 0.03%, S : ≤0.05%, Cr: 17%, W: 0.9%, Mo: 0.7%, the balance is Fe and inevitable impurities, the preparation method is: smelting according to the above components, adjusting the pouring after the components meet the requirements When the temperature reaches 1565℃, it is poured into the sand mold, and after cooling to room temperature, sanding and cleaning are carried out; then it is heated to 1260℃ for forging and billeting; It is a 3.5mm bar; then multi-pass cold drawing is performed, and intermediate annealing is performed during the drawing process, and the annealing temperature is 945 ° C until the drawing reaches the finished heald.

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Abstract

The invention discloses a preparation method of a harness wire of an automatic loom. The chemical components of the harness wire comprise the following elements in percentage by weight: 0.20-0.30% of C, 0.6-0.8% of Si, 1.3-1.8% of Mn, less than or equal to 0.03% of P, less than or equal to 0.05% of S, 15-17.5% of Cr, 0.8-1.2% of W, 0.5-0.8% of Mo and the balance of Fe and inevitable impurities. The preparation method is as follows: smelting the components and casting at 1560-1580 DEG C; cooling along with the type, clearing, then heating to 1240-1270 DEG C and carrying out hammer cogging; then carrying out hot rolling on a blank, wherein the finishing temperature is maintained to be above 1050 DEG C and finally a rod with the diameter of 3-5mm is rolled; and then carrying out multi-pass cold drawing and wire drawing, and carrying out intermediate annealing at the annealing temperature of 920-950 DEG C in a wire drawing process until a wire is drawn to obtain a finished product of the harness wire.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to a method for preparing a heald of an automatic loom. Background technique [0002] With the current increase in operating speed of automatic looms, the components of automatic looms need to be in contact with longer yarns than conventional looms. Therefore, fluffing and yarn breakage occur in a very short operating time, which do not occur in conventional looms. Therefore, the wear resistance required for components of automatic looms is higher than that of conventional loom components. In addition, as new textile materials have been developed, parts of automatic looms must also have good abrasion resistance to these new textile materials. [0003] figure 1 A jacquard-type shedding machine is shown that, when operated, creates a space between the warp yarns for pulling in steel buckles. According to the information of the jacquard paper, the plurality of warp yarns 2 are move...

Claims

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Application Information

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IPC IPC(8): C22C38/38C22C38/22C21D8/06C21D1/26C21D11/00B21B37/74
Inventor 崔敏娟
Owner 崔敏娟