Manufacturing method of duplex stainless steel braided hose

A technology of duplex stainless steel and braided hose is applied in the manufacturing field of stainless steel braided hose wire, which can solve the problems of difficult deformation, multiple production and processing passes, and the production process cannot meet the requirements, and achieves good processing performance and low cost. , the effect of bright surface

Active Publication Date: 2013-05-15
浙江腾龙不锈钢棒线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the work hardening of duplex stainless steel is more obvious during cold working, and the deformation is more difficult, while the size of stainless steel braided hose wire is thinner, generally Ф0.1~0.2mm, which requires more production and processing passes, so duplex stainless steel The difficulty of replacing SUS304 austenitic stainless steel with stainless steel to produce braided hose wire lies in the breakthrough of cold processing technology, and the existing production technology cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A method for manufacturing a duplex stainless steel braided hose wire, comprising the following steps:

[0018] 1) Pre-treatment: The surface of the Ф5.5mm duplex stainless steel wire is treated and dried in a film tank equipped with a film agent. The film agent is a product of the model TS4445 provided by Beijing Kangdat Technology and Trade Co., Ltd. ;The Ф5.5mm duplex stainless steel wire is mainly composed of the following alloy elements in weight percentage: C0.015%, Si0.40%, Mn4.70%, P0.025%, S0.005%, Cr21.20%, Mo0.30%, Ni2.0%, Cu0.4%, N0.15%, the balance is Fe and unavoidable impurities;

[0019] 2) The first drawing and the first solid solution treatment: the first lubricant is coated on the surface of the duplex stainless steel wire after pretreatment, the first drawing is carried out, and then the first solid solution treatment is carried out. The area reduction rate of one drawing is 79.34%, and the heating temperature of the first solution tre...

Embodiment 2

[0023] Embodiment 2: A method for manufacturing a duplex stainless steel braided hose wire, comprising the following steps:

[0024] 1) Pre-treatment: The surface of the Ф5.5mm duplex stainless steel wire is treated and dried in a film tank equipped with a film agent. The film agent is a product of the model TS4445 provided by Beijing Kangdat Technology and Trade Co., Ltd. ;The Ф5.5mm duplex stainless steel wire is mainly composed of the following alloying elements by weight percentage: C0.013%, Si0.35%, Mn5.20%, P0.02%, S0.002%, Cr21.80%, Mo0.40%, Ni2.3%, Cu0.3%, N0.1%, the balance is Fe and unavoidable impurities;

[0025] 2) The first drawing and the first solid solution treatment: the first lubricant is coated on the surface of the duplex stainless steel wire after pretreatment, the first drawing is carried out, and then the first solid solution treatment is carried out. The area reduction rate of the first drawing is 82.51%, and the heating temperature of the first solut...

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Abstract

The invention discloses a manufacturing method of a duplex stainless steel braided hose. The method comprises the following steps of: coating a lubricant on the surface of a duplex stainless steel wire for many times as well as carrying out drawing and solid solution treatment; and meanwhile, controlling the reduction ratio of drawing at each time and solid solution treatment temperature to finally obtain a duplex stainless steel braided hose product. The duplex stainless steel braided hose prepared by the manufacturing method is good in machining performance, low in cost, bright in surface and free from defects such as black yellow lines, drawing stamps, flaws, folds and warps. The mechanical properties are as follows: the yield strength is 460-560N / mm<2>, the tensile strength is greater than or equal to 800N / mm<2>, and the ductility is 20-30%. The duplex stainless steel braided hose has certain magnetism.

Description

technical field [0001] The invention relates to a manufacturing method of a stainless steel braided hose wire, in particular to a manufacturing method of a duplex stainless steel braided hose wire. Background technique [0002] The existing stainless steel braided hose is generally made of SUS304 austenitic stainless steel, which has good softness, corrosion resistance and wear resistance, and good strength. It is widely used in nuclear power, petrochemical, bridges, construction, heat exchange Devices, wires, cables, optical fibers, industrial sensor line protection tubes, etc. However, the nickel content of SUS304 austenitic stainless steel is relatively high, and its nickel content is 8~11%, so the cost is relatively high. [0003] Duplex stainless steel is a type of steel developed in the 1970s and 1980s. It has a two-phase structure. The structure after solution treatment at room temperature (that is, the heat treatment process of heating and cooling to room temperatur...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C22C38/58C21D8/06
Inventor蒋超贺丹红袁方明戴泽千谢大凯
Owner浙江腾龙不锈钢棒线有限公司