Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof

A stainless steel and titanium welded pipe technology, applied in the direction of rolls, metal rolling, metal rolling, etc., can solve the problems of short service life of rolls, can not meet the needs of use, easy to wear rolls, etc., to improve surface hardness and wear resistance. , to meet the effect of efficient continuous production and rigid demand

Inactive Publication Date: 2011-02-16
李志雄
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Problems solved by technology

[0003] At present, the production of stainless steel welded pipes in the prior art mainly has the following technical problems: 1. The wall is thin, and the weld seam is easy to deviate; 2. The rigidity is large, and the rolls are easy to wear, and the service life of the rolls is not long; 3. The welding unit and the mold. High requirements require high machining accuracy
At present, the existing traditional surface treatment technology can no longer meet the growing needs of use.

Method used

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  • Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof
  • Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof
  • Titanium welded pipe and stainless steel welded pipe forming roller and surface treatment method thereof

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Embodiment Construction

[0019] figure 1 and figure 2 Shown are the titanium welded pipe and stainless steel welded pipe forming rolls of the present invention, including precision forming roll pairs and sizing roll pairs. The base material 1 is made of alloy tool steel material which is wear-resistant and suitable for coating, such as alloy tool steel H13, that is, 4Cr5MoSiV1 alloy. In the roll forming part 2 or tumor accumulation part 3, the combination of ion nitriding and diamond-like film plating process is used for surface coating treatment, so as to form a composite coating of nitriding layer and diamond-like film. The forming roll achieves a superhard and super smooth surface state, the mold surface hardness is ≥ 23GPa, and the friction coefficient is less than 0.20. The roll surface is incompatible with titanium and stainless steel, which solves the problem of scratches on the welded pipe surface and increases the service life by 2 ~3 times. The roll is processed and shaped by an optical ...

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Abstract

The invention discloses a titanium welded pipe and stainless steel welded pipe forming roller. A base material for the forming roller is an alloy tool steel material with the hardness not less than 40HRC. The surface of a forming part or a nodulating part of the roller is provided with a composite coating layer formed by a nitriding layer and a coating film. The invention also discloses a surface treatment method of the forming roller. In the invention, the surface harness and abrasive resistance of the forming roller are improved, and meanwhile, the surface of the roller is not in affinity with titanium materials and stainless steel materials, therefore, the problem on the scratching of the surface of the welded pipe is solved, the service life of the roller is prolonged, the production cost is reduced, the product quality is improved and the technological requirements on high-efficiency continuous production can be met.

Description

technical field [0001] The invention relates to the technical field of production of titanium welded pipes and stainless steel welded pipes, in particular to a forming roll of titanium welded pipes and stainless steel welded pipes and a processing method thereof. Background technique [0002] Compared with advanced industrialized countries, there is a big gap between my country's precision mold manufacturing level, mainly in terms of precision, cavity surface roughness, and service life. Among the molds produced in China, the proportion of precision molds that are urgently needed in countries such as large, precise, complex, and long-life is only about 30%, while that in foreign countries is more than 60%. Therefore, the development and research of high-quality precision molding molds with independent property rights has become a A key to raising the level of domestic industrial production. [0003] At present, there are mainly the following technical problems in the produc...

Claims

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Application Information

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IPC IPC(8): B21B27/02
Inventor 李志雄
Owner 李志雄
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