High-wear-resistant steel for knitting needle and manufacturing method thereof

A technology with high wear resistance and manufacturing method, which is applied in the field of steel for knitting machinery, can solve the problems that it cannot be well adapted to high-strength knitting operations, and the fatigue resistance of knitting needles is not strong.

Inactive Publication Date: 2012-07-11
LANGSHA KNITTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the knitting needles made of the components contained in T9A are not strong in f

Method used

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  • High-wear-resistant steel for knitting needle and manufacturing method thereof
  • High-wear-resistant steel for knitting needle and manufacturing method thereof
  • High-wear-resistant steel for knitting needle and manufacturing method thereof

Examples

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Embodiment 1

[0042] In this example, the composition and weight percentage of the cold work die steel are as follows:

[0043] C 1%, Si 0.2%, Mn 0.55%, Cr 0.2%, V 0.1%, Ni 0.1%, Nd 0.1%, P 0.02%, S 0.02%, and the balance is Fe and unavoidable impurities.

[0044] In the present embodiment, the process and steps of cold working die steel are as follows:

[0045] According to the ratio of the chemical components of the present invention, the steel ingot cast after smelting in the induction furnace is used as the consumable electrode and placed in the electroslag remelting device for electroslag remelting, and the liquid metal falls through the slag layer of the slag pool into the water-cooled crystallizer below, and then re-solidified into steel ingots; when the above-mentioned steel ingots are heated in the furnace, the furnace temperature is controlled at 500°C, heated at a heating rate of 60°C / h, and heated to a temperature of 1030°C, within this range After 3 hours of internal heat pres...

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Abstract

The invention relates to the field of steel for knitting machinery, in particular to high-wear-resistant steel for a knitting needle and a manufacturing method of the high-wear-resistant steel for the knitting needle. The high-wear-resistant steel comprises the following ingredients (weight percentage): C 0.8-1.2%, Si 0.1-0.4%, Mn 0.4-0.6%, Nb 0.1-0.15%, V 0.1-0.15%, Ni 0.1-0.3%, Cr 0.1-0.3%, and Fe and other unavoidable impurities in balance. A steel ingot casted after being subjected to smelting in an induction furnace is arranged in an electroslag remelting device as a consumable electrode for electroslag remelting, and then liquid metal drops in a water-cooling crystallizer at the bottom through a slag layer of a slag pool so as to be re-solidified to a steel ingot. After being heated a temperature range of 1000-1030 DEG C and kept for 3-5 hours, the re-solidified steel ingot is sequentially forged, bent, flattened, milled and subjected to thermal treatment to obtain cold working die steel with high combination of strength and toughness , high hardness, high wear resistance and the like.

Description

technical field [0001] The invention relates to the field of steel for knitting machines, in particular steel for knitting needles, a steel for knitting needles with high wear resistance and a manufacturing method thereof. Background technique [0002] Knitting needles are important working parts of various knitting machines, and their quality level and level are reflected in both performance and life. As we all know, there has always been a big gap between domestic knitting needles and foreign advanced levels. In addition to low manufacturing precision, the raw materials used for knitting needles, heat treatment and surface treatment equipment, and various technologies are also important influencing factors. Relatively weak. With the rapid development of the knitting industry, many domestic knitting manufacturers have successively imported some knitting machines such as circular weft knitting machines, warp biasing machines, computerized flat knitting machines, and automat...

Claims

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Application Information

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IPC IPC(8): C22C38/48C22C33/04B22D23/10C21D8/00
Inventor 翁荣弟刘爱莲鲍进跃汪宏斌韦习成邓黎辉
Owner LANGSHA KNITTING
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