Method for manufacturing precision alloy semicircular steel wires

A precision alloy and manufacturing method technology, applied in the field of metal products, can solve the problems of high precision rolling rolls, serious environmental pollution, and high production costs, and achieve the effects of ensuring product yield, simple and stable process, and improving production efficiency

Inactive Publication Date: 2010-12-22
JIANGSU XINHUA ALLOY ELECTRIC
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] 1. In the process of rolling the shaped roll into a semicircle, the precision of the rolled shaped roll is required to be high, the manufacturing process is complicated, the stability is poor, and the product yield is low, which is about 40%;
[0004] 2. It is necessary to frequently replace the forming roller and grinding roller, resulting in low labor production efficiency and high production cost;
[0005] 3. Compared with drawing manufacturing, rolling manufacturing consumes a lot of energy and causes serious environmental pollution

Method used

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  • Method for manufacturing precision alloy semicircular steel wires
  • Method for manufacturing precision alloy semicircular steel wires
  • Method for manufacturing precision alloy semicircular steel wires

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Embodiment Construction

[0032] The present invention is further described and understood by non-limiting examples below.

[0033] A kind of manufacturing method of precision alloy semicircular steel wire of the present invention:

[0034] 1) Carry out raw material preparation according to the weight percent calculation of the contained composition of precision alloy semicircular steel wire, prepared three furnace embodiments, see as follows:

[0035] First furnace: C: 0.021%; Si: 0.30%; Mn: 0.50%;

[0036] P: 0.009%; S: 0.007%; Ni: 49.80%;

[0037] Fe: 49.32%.

[0038] Second furnace: C: 0.018%; Si: 0.28%; Mn: 0.45%;

[0039] P: 0.0052%; S: 0.0059%; Ni: 50.13%;

[0040] Fe: 48.99%.

[0041] The third furnace: C: 0.017%; Si: 0.25%; Mn: 0.38%;

[0042] P: 0.007%; S: 0.008%; Ni: 51.00%;

[0043] Fe: 48.12%.

[0044] 2) Melting: Clean the raw materials prepared above and put them into a vacuum induction furnace to melt the ingot. The temperature dur...

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Abstract

The invention discloses a method for manufacturing precision alloy semicircular steel wires, and belongs to the technical field of metal products. The method for manufacturing the semicircular steel wires comprises the following steps of: preparing raw materials in percentage by weight of components of the precision alloy semicircular steel wires, and performing smelting, forging, coiling, rinsing, die drawing, rinsing, annealing and the like. The die drawing means to perform multiple drawing, intermediate annealing, drawing, intermediate annealing and drawing on the bleached blank by adopting a die so as to obtain a semicircular steel wire finished product. According to the rinsing, the alkali liquid in the alkali washing step is proportioned in part by weight, the temperature of the alkali liquid is between 480 and 550 DEG C, the alkali bleaching time is 10 minutes, the acid liquid in the acid washing step is proportioned in part by weight, the temperature of the acid liquid is between 40 and 60 DEG C, and the acid bleaching time is 10 to 15 minutes. The manufacturing has stable manufacturing process, and can remarkably improve the product qualification rate, reduce the production cost and effectively reduce environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of metal products, in particular to a method for manufacturing a precision alloy semicircular steel wire. The precision alloy semicircular steel wire is mainly used for ignition structural parts of gas solenoid valves. Background technique [0002] Gas solenoid valves are widely used in industrial and civil fields, and the market is both large and wide. Nickel-iron precision alloy semicircular steel wire is an indispensable structural part of gas solenoid valves. In the prior art, the manufacturing method of the nickel-iron precision alloy semicircular steel wire is mainly to form a semicircular shape by roll rolling, which has the following disadvantages: [0003] 1. In the process of rolling the shaped roll into a semicircle, the precision of the rolled shaped roll is required to be high, the manufacturing process is complicated, the stability is poor, and the product yield is low, which is about 40%; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22C38/08C22C1/02C22C33/04B21C1/00C21D8/06
Inventor 华大凤王树平
Owner JIANGSU XINHUA ALLOY ELECTRIC
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