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A kind of preparation method of matt tantalum roll strip material

A technology of tantalum coils and strips, which is applied in the field of preparation of tantalum coils and strips, can solve problems such as insufficient adhesion, loss of glossy aesthetics, pollution, etc., and achieve the effects of strong adhesion, fingerprint oil resistance, and simple process

Active Publication Date: 2018-10-12
长沙南方钽铌有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tantalum tape produced by this method has a high degree of smoothness, but there are certain disadvantages. The adhesion is not enough when coating tantalum powder, and it is easy to be polluted by fingerprints, oil stains and other factors, which will affect the coating effect, and form dark spots and lose Bright beauty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The preparation method of the matt tantalum coil strip described in this embodiment, the process flow is: alkaline washing process of tantalum coil strip → water cleaning → neutralization process → surface cleaning process → surface activation process → curing process .

[0020] The tantalum coils and strips may be hot-rolled tantalum coils and strips, or tantalum coils and strips that are smoothly or mirror-rolled after heat treatment; thickness 0.5mm, width 200mm.

[0021] In the alkaline washing process, the surface oil stains are cleaned to obtain a clean tantalum strip surface. The treatment method is: put the unwinding tantalum material into a solution of 200~400g / L sodium bicarbonate, and the solution needs to be added 40 ~50g / L sodium citrate, control the temperature at 50~70℃, the treatment time is 30~200s, smooth the surface mechanical pattern and remove the rolling oil, the surface of the board is bright silver white after treatment;

[0022] The neut...

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Abstract

The invention discloses a preparation method of matt tantalum coiled strips. The method comprises the following processes of carrying out alkaline cleaning on a tantalum coiled strip, carrying out water cleaning on the tantalum coiled strip, neutralizing the tantalum coiled strip, carrying out surface cleaning on the tantalum coiled strip, carrying out surface activation on the tantalum coiled strip, and curing the tantalum coiled strip. The tantalum coiled strip treated by using the method disclosed by the invention has a matt surface; and compared with untreated tantalum materials in the same specification, the treated tantalum coiled strip has a high specific surface area and a high surface activity, and has the characteristics of pollution resistance, and strong environmental adaptability and the like visually.

Description

Technical field [0001] The invention relates to a preparation process of a tantalum coil strip, in particular to the technical field of surface matt treatment of tantalum and tantalum alloy strip coils. Background technique [0002] Tantalum is a rare and high melting point metal with good processing and forming performance and corrosion resistance. Its profile can be processed into various types of plates, strips, rods, wires, tubes and special-shaped parts, and is widely used in electronics, aerospace, and chemical industries. , Thermal energy, biomedicine and other industries. Tantalum coils and strips are the most important type of tantalum profile 3 products and are the key material for the preparation of all tantalum capacitors. At present, the existing domestic tantalum coils and strips are all prepared by smooth rolling. The tantalum tape produced by this method has a high smoothness, but it has certain drawbacks. When tantalum powder is coated, the adhesion is not enoug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/04C25D11/26C23C22/73
Inventor 蒋坤林
Owner 长沙南方钽铌有限责任公司