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Preparation technique of micropore titanium plate

A preparation process and technology of microporous titanium, which is applied in the field of titanium plate processing, can solve the problem of inaccurate thickness control, etc., and achieve the effects of easy control of aperture ratio, low processing cost and low rolling cost

Inactive Publication Date: 2009-01-07
BAOJI JIKAI TECH & TRADING
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  • Claims
  • Application Information

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Problems solved by technology

This method is sintered through a special mold, and the thickness control is not accurate enough

Method used

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  • Preparation technique of micropore titanium plate

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Embodiment Construction

[0025] The preparation process of the microporous titanium plate is implemented according to the following steps:

[0026] (1) Milling: select sponge titanium, and use hydrodehydrogenation method to extract high-purity titanium powder with low oxygen and low hydrogen; the oxygen content of high-purity titanium powder is less than 0.05%, and the hydrogen content is less than 0.02%. The content is not less than 99.75%;

[0027] (2) Powder selection: use a magnetic separator to remove iron-containing impurities in the titanium powder, and use a screening machine to classify the titanium powder according to the particle size;

[0028] (3) Cleaning treatment: pickling the graded titanium powder to remove metal and non-metallic impurities and then washing with pure water; pickling adopts nitric acid with a concentration greater than 15%.

[0029] (4) Drying: vacuum and dust-free drying of the cleaned titanium powder;

[0030] (5) Preparation and classification: the titanium powder...

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Abstract

The invention belongs to a technology for preparing a millipore titanium plate in the technical field of metal material processing, and is implemented according to the following steps: (1) preparing powder: selecting sponge titanium and adopting the hydrogenation dehydrogenization method to extract low-oxygen, low-hydrogen and high-purity titanium powder; (2) selecting powder: using a magnetic extractor to remove ferruginous impurities from the titanium powder, and using a screen grader to grade the titanium powder according to the granule size; (3) cleaning processing: using acid to clean metal and nonmetal impurities from the graded titanium powder and then using pure water to clean the titanium powder; (4) drying: performing vacuum dustless drying to the cleaned titanium powder; (5) preparing and grading: culling and grading the dried titanium powder according to granule size; (6) rolling: using a rolling mill to roll the titanium powder of the same grade into sectional material; (7) sintering: keeping the degree of vacuum at least below 10Pa, and sintering at the temperature of 1,000 to 1,300 DEG C; and (8) forming by shearing: the plate formed after sintering is leveled off and sheared into specified dimensions according to required specifications. The aperture ratio of the rolled titanium plate is easy to control, the plate is shaped at a time, the thickness of the plate can be freely adjusted, and the rolling cost is low.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, in particular to the processing of titanium plates. Background technique [0002] In the early days, microporous materials were mainly used in materials such as ceramics, quartz sand, and nylon cloth. Due to their pollution, heat resistance, and short life, their use was restricted. [0003] The processing of metal microporous materials is a difficult problem in metal processing because the pore diameter is difficult to control. [0004] With the appearance of microporous titanium, it is widely used in petrochemical, pharmaceutical, aviation, electrification, environmental protection and other fields with excellent properties such as heat resistance, pressure resistance, corrosion resistance, cuttable and weldable, and has broad prospects. Various specifications and models of microporous titanium plates can be produced as required. [0005] Due to the good affinity between tit...

Claims

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Application Information

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IPC IPC(8): B22F3/00B22F3/16B22F3/24
Inventor 扈建中马宝勋李树宝
Owner BAOJI JIKAI TECH & TRADING
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