Production process of low-magnetic austenitic stainless steel balance rod line

A technology of austenitic stainless steel and production process, which is applied in the direction of wire drawing dies, etc., can solve the problems of not being able to meet low magnetic properties, and achieve the effects of improving work hardening performance, reducing magnetic properties, and improving surface quality

Active Publication Date: 2020-04-28
JIANGYIN FASTEN STAINLESS STEEL PROD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because there are still a lot of martensite and second phase precipitation in the material, it cannot meet the good low magnetic properties required by this type of material.

Method used

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  • Production process of low-magnetic austenitic stainless steel balance rod line

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Experimental program
Comparison scheme
Effect test

Embodiment

[0031] like figure 1 As shown, the process flow chart of the production process of the low magnetic austenitic stainless steel balance rod line in this embodiment.

[0032] S1: Select φ5.5mm stainless steel wire rod, chemical composition: C:0.065%~0.077%, Si<1.00%, Mn<2.00%, P<0.045%, S<0.030%, Ni:8.00%~11.00%, Cr: 18.00%~20.00%, N: 0.09%~0.12%, and the balance is Fe.

[0033] S2: Film treatment, immerse the φ5.5mm stainless steel wire rod selected in S1 in the 80°C film treatment solution for 25 minutes. The film treatment solution is an aqueous solution of a mixture of potassium sulfate and calcium sulfate with a concentration of 18wt%; Dry in a warm air stove, bake at 230°C for 100 minutes, and use it after the surface of the steel wire is dry.

[0034] S3: Rough drawing, the φ5.5mm stainless steel wire rod treated with film in S2 is drawn through 8 draws at a speed of 400m / min through the pay-off frame, and the cooling water temperature of the mold box is 30°C, all passe...

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Abstract

The invention relates to a production process of the low-magnetic austenitic stainless steel balance rod line. The production process of the low-magnetic austenitic stainless steel balance rod line comprises the following process steps of coating treatment, rough drawing, electrolytic cleaning, solution treatment, temperature control wet drawing and packaging, the carbon content in the raw material composition is controlled at 0.065 to 0.077%, the nitrogen content is controlled at 0.09 to 0.12%, and the temperature of a lubricating liquid is controlled at 70 to 95 DEG C in the wet drawing process. According to the production process of the low-magnetism austenitic stainless steel balance rod line, the magnetism of the austenitic stainless steel balance rod line can be effectively eliminated, the strength of the austenitic stainless steel balance rod line after drawing is controlled, and the surface quality of the balance rod line is improved.

Description

Technical field [0001] The invention belongs to the technical field of metal wires, and specifically relates to a production process of a low-magnetic austenitic stainless steel balance rod wire. Background technique [0002] Austenitic stainless steel balance wires are widely used in precision equipment and precision instruments. In addition to good mechanical properties, corrosion resistance and formability, they are also required to be non-magnetized and low magnetized. This is because magnetism will affect internal electronic components. job stability. [0003] At present, austenitic stainless steel balance wires are mainly produced by dry drawing. After drawing, some lubricating powder remains on the surface and will affect the corrosion resistance of the product. In addition, since cold work hardening of austenitic stainless steel easily induces the generation of deformed martensite, This results in the austenitic stainless steel balance rod wire becoming magnetic, re...

Claims

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Application Information

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IPC IPC(8): B21C1/04B21C3/02B21C9/00B21C37/04C22C38/02C22C38/04C22C38/58
CPCB21C1/04B21C3/02B21C9/00B21C37/04C22C38/02C22C38/04C22C38/58C22C38/001C22C38/002
Inventor 徐钦华谢小光朱建新张磊宗永严磊
Owner JIANGYIN FASTEN STAINLESS STEEL PROD CO LTD
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