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Stainless steel wire and preparation method thereof, and stainless steel spring

A stainless steel wire, an unavoidable technology, applied in the field of high-temperature wire processing, can solve problems such as complex production process, achieve good corrosion resistance, increase strength, and improve corrosion resistance

Active Publication Date: 2021-12-14
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

[0007] Aiming at the problem that the performance of the stainless steel wire products and the stainless steel spring prepared with the stainless steel wire needs to be further improved in the prior art, as well as the defects such as complex production process and strict process conditions, the present invention proposes a stainless steel wire and its preparation method And stainless steel spring, by controlling the content of raw material elements, solid solution temperature and improving the deformation of each pass, the stable production of low-stress matte stainless steel wire with a diameter of 0.5mm and a strength reaching SWPA level and the spring made of this stainless steel wire

Method used

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  • Stainless steel wire and preparation method thereof, and stainless steel spring
  • Stainless steel wire and preparation method thereof, and stainless steel spring
  • Stainless steel wire and preparation method thereof, and stainless steel spring

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preparation example Construction

[0092] In another specific embodiment, the present invention provides a kind of preparation method of said stainless steel wire, such as figure 1 As shown, the preparation method specifically includes the following steps:

[0093] (1) Rough drawing: Soak the stainless steel wire material in 80°C, 12-18wt% 0445 film agent produced by Jinan Jinhailong Chemical Co., Ltd. and react for 25 minutes. After forming a film, dry it at 200°C for 120 minutes to obtain pretreatment Stainless steel wire, the pretreated stainless steel wire enters a straight-in wire drawing machine through a pay-off device for rough drawing and drawing, the deformation of the first pass is ≥ 30%, and the deformation of the intermediate pass is 16-30%. The amount of deformation decreases gradually compared with the deformation amount of the previous pass, and the deformation amount of the last pass is 14-16%. The WS50 calcium-based lubricating powder produced by Terunsi Co., Ltd. is used in the final pass of...

Embodiment 1-6

[0100] Each embodiment provides a kind of stainless steel wire respectively, and each embodiment adopts the preparation method of the above-mentioned stainless steel wire of the embodiment of the present application to make, but the chemical composition of the stainless steel wire raw material between each embodiment, the difference between the drawing process The process parameters are different.

Embodiment 7

[0102] The present embodiment provides a kind of preparation method of described stainless steel wire, and method specifically comprises the following steps:

[0103] (1) Rough drawing: Soak the stainless steel wire material in 70°C, 15wt% 0445 film agent produced by Jinan Jinhailong Chemical Co., Ltd. for 30 minutes, and after forming a film, dry it at 180°C for 150 minutes to obtain pretreated stainless steel wire , the pretreated stainless steel wire enters the straight wire drawing machine through the pay-off device for rough drawing and drawing treatment, the deformation of the first pass is ≥ 30%, the deformation of the middle pass is 16-30%, and the deformation of each pass is The deformation of the last pass decreases gradually, and the deformation of the last pass is 14-16%. When drawing, the rough drawing die box is cooled by circulating water at 25°C, and special moistening is used for the first to penultimate passes. The WS50 calcium-based lubricating powder produc...

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Abstract

The invention provides a stainless steel wire and a preparation method thereof, and a stainless steel spring. The stainless steel wire comprises the following chemical components in percentage by mass: 0.03%-0.08% of C, 6.50%-7.50% of Ni, 16.50%-17.50% of Cr and 0.15%-0.17% of N. According to the preparation method, on the basis of an original process, the solid solution temperature is controlled to be 1000-1120 DEG C, and the deformation of a first pass in secondary fine drawing is limited to be below 15%; the stainless steel wire and the spring prepared from the stainless steel wire can be stably produced, the wire diameter of the stainless steel wire is 0.5 mm, and meanwhile the strength of the stainless steel wire reaches the SWPA level; and by adjusting the raw material element content of original process, controlling the solid solution temperature and improving pass deformation amount, the strength and the corrosion resistance of the stainless steel wire for the spring are further improved.

Description

technical field [0001] The invention belongs to the technical field of high-temperature wire processing, and in particular relates to a stainless steel wire, a preparation method thereof and a stainless steel spring. Background technique [0002] Piano wire is a high-strength spring material that is cold-drawn after quenching in a lead bath. It has a very high strength limit and elastic limit, and is a widely used small spring material. Piano wire has strict quality and performance requirements. According to its application, it can be divided into dynamic springs, high-stress mechanical springs and valve springs. The production process of piano steel wire is generally divided into three parts: rough drawing, annealing (solution treatment), and fine drawing. After each drawing, it is drawn again after solution treatment, and finally drawn to the required specifications. At the same time, according to the performance of the finished product Adjust the amount of deformation in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/40C22C38/58C22C38/04C22C38/02C21D8/06C21D1/18C25F1/06C21D1/74C21D1/26B21C1/02
CPCC22C38/40C22C38/58C22C38/04C22C38/02C22C38/001C21D8/065C21D1/18C25F1/06C21D1/74C21D1/26B21C1/02
Inventor 徐钦华朱建新严磊宗永戴鹏勇张小地张晓清梅虎
Owner JIANGYIN FASTEN STAINLESS STEEL PROD CO LTD