A processing method for corrosion-resistant metal shelves

A processing method and corrosion-resistant technology, applied in the direction of metal material coating technology, etc., can solve the problems of unsatisfactory product life, products responding to complex environments, and protective layer falling off, so as to reduce energy consumption and benefit the human body and the environment. Environmental protection and service life extension effect

Active Publication Date: 2020-11-17
NINGBO CITY XINGUANG SHELF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, simple surface treatment cannot make the product cope with complex environments, and it is easy to cause the protective layer to fall off and fail
[0004] Aiming at the shortcomings of ordinary surface treated products such as easy corrosion and wear, Publication No. 105088292A discloses a method of copper plating on the metal surface to improve the corrosion resistance and wear resistance of the product
However, copper itself is a metal that is easily corroded, and it is easy to form copper rust in a humid air environment, and it is not satisfactory in terms of improving product life.

Method used

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  • A processing method for corrosion-resistant metal shelves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Ingredients: Weigh raw materials according to the composition and mass percentage of the above-mentioned corrosion-resistant metal shelves, including Tl: 5%, Be: 0.4%, C: 0.7%, Os: 0.8%, Pb: 2%, Sn: 3%, Ir : 0.6%, the balance is Fe and impurities, wherein the impurities include S<0.055%, O<0.015%.

[0033] Powder making: Put the raw material powder mixed in proportion into the jet mill, feed nitrogen, set the nitrogen pressure to 0.8MPa, and obtain alloy powder after continuous processing for 135 hours.

[0034] Compression molding: Fill the alloy powder into the mold of each part of the prefabricated shelf, fill it with nitrogen until the pressure in the mold reaches 3 atmospheres, and take out the blanks of each part after pressing for 4 hours.

[0035] Sintering: put the blank into the sintering furnace, first pre-sinter at 700°C for 1.5h, and carry out repressing treatment at the same time, then sinter the blank at 1100°C for 4h, then cool to room temperature, and f...

Embodiment 2

[0038] Ingredients: Weigh raw materials according to the composition and mass percentage of the above-mentioned corrosion-resistant metal shelves, including Tl: 4%, Be: 0.2%, C: 0.6%, Os: 0.6%, Pb: 1%, Sn: 2%, Ir : 0.4%, the balance is Fe and impurities, wherein the impurities include S<0.055%, O<0.015%.

[0039] Powder making: Put the raw material powder mixed in proportion into the jet mill, feed nitrogen, set the nitrogen pressure to 0.8MPa, and obtain alloy powder after continuous processing for 135 hours.

[0040] Compression molding: Fill the alloy powder into the mold of each part of the prefabricated shelf, fill it with nitrogen until the pressure in the mold reaches 3 atmospheres, and take out the blanks of each part after pressing for 4 hours.

[0041] Sintering: put the blank into the sintering furnace, first pre-sinter at 700°C for 1.5h, and carry out repressing treatment at the same time, then sinter the blank at 1100°C for 4h, then cool to room temperature, and fin...

Embodiment 3

[0044] Ingredients: Weigh raw materials according to the composition and mass percentage of the above-mentioned corrosion-resistant metal shelves, including Tl: 6%, Be: 0.6%, C: 0.8%, Os: 1%, Pb: 3%, Sn: 4%, Ir : 0.8%, the balance is Fe and impurities, wherein the impurities include S<0.055%, O<0.015%.

[0045] Powder making: Put the raw material powder mixed in proportion into the jet mill, feed nitrogen, set the nitrogen pressure to 0.8MPa, and obtain alloy powder after continuous processing for 135 hours.

[0046] Compression molding: Fill the alloy powder into the mold of each part of the prefabricated shelf, fill it with nitrogen until the pressure in the mold reaches 3 atmospheres, and take out the blanks of each part after pressing for 4 hours.

[0047] Sintering: put the blank into the sintering furnace, first pre-sinter at 700°C for 1.5h, and carry out repressing treatment at the same time, then sinter the blank at 1100°C for 4h, then cool to room temperature, and fin...

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Abstract

The invention discloses a machining method of corrosion-resistant metal shelf, and belongs to the technical field of metal machining. The metal shelf is formed by machining through material blending and powder making, pressing forming, sintering and surface treatment. The metal shelf comprises raw materials of 4-6 % of Tl, 0.2-0.6 % of Be, 0.6-0.8 % of C, 0.6-1 % of Os, 1-3 % of Pb, 2-4 % of Sn, 0.4-0.8 % of Ir and the balance Fe and impurities; and the impurities comprise less than 0.055 % of S and less than 0.015 % of O. In the process of powder metallurgy, all organizational structures of metal are refined continuously by powder making through a mechanical method, atomic-level mixing is achieved finally, and alloying is realized; and a uniform and compact protective film is formed by combining a surface phosphating process.

Description

technical field [0001] The invention relates to a processing method of a corrosion-resistant metal shelf, which belongs to the field of metal processing. Background technique [0002] Surface treatment is a method of artificially forming a surface layer on the surface of a base material with mechanical, physical and chemical properties different from that of the base. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. For metal castings, our more commonly used surface treatment methods are mechanical grinding, chemical treatment, surface heat treatment, surface spraying, etc. [0003] Shelves are widely used as an indispensable item in life, and the materials of shelves can generally be divided into wood, alloy, polymer materials, etc. Because of its good strength and hardness, the number of alloy shelves far exceeds that of shelves made of other materials. In general, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F5/00C22C38/14C22C38/60C23C22/07
CPCB22F5/00B22F2998/10C22C38/002C22C38/008C22C38/14C22C38/60C23C22/07B22F2009/041B22F3/02B22F3/10B22F3/24
Inventor 朱旭光
Owner NINGBO CITY XINGUANG SHELF
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