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Machining process of zinc-copper with mechanical properties controlled by machining rate

A processing technology, a technology of zinc cupronickel, which is applied in the field of processing technology where the processing rate controls the mechanical properties of zinc cupronickel, can solve the problems of difficulty in obtaining products with uniform structure, deviation of mechanical properties of finished products, etc. Granular tissue uniformity

Inactive Publication Date: 2013-11-20
ANHUI XINKE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After metallographic analysis of hard zinc-nickel-nickel products, it is found that its structure is between complete crystallization and incomplete crystallization. If the traditional heat treatment method in the finished product stage is used to control the mechanical properties of zinc-nickel-nickel copper, it is difficult to obtain products with uniform structure. Lead to large deviations in the mechanical properties of the finished product

Method used

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  • Machining process of zinc-copper with mechanical properties controlled by machining rate
  • Machining process of zinc-copper with mechanical properties controlled by machining rate
  • Machining process of zinc-copper with mechanical properties controlled by machining rate

Examples

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Effect test

Embodiment 1

[0024] Example 1, the processing technology of controlling the mechanical properties of zinc-nickel-nickel copper by processing rate, the specific processing process is: smelting and casting→face milling→rough rolling blanking→thick trimming→intermediate annealing→degreasing and cleaning→rolling with bottom material→intermediate Annealing → Degreasing and cleaning → Finished product rolling → Finished product annealing → Stretch bending straightening → Finished product cleaning → Strip storage, among which, in the rolling bottom material, 35% of the processing rate is selected for the rolling of the zinc white copper bottom material ; Before the intermediate annealing, the zinc-nickel-nickel copper base material is uncoiled, and the zinc-nickel-nickel copper base material after the uncoiling treatment is heated to a temperature of 600 ° C, and heat treatment is carried out at this temperature for 7 hours; in the finished product rolling , choose a 15% processing rate to roll th...

Embodiment 2

[0026] Example 2, the processing technology of controlling the mechanical properties of zinc-nickel-nickel copper by processing rate, the specific processing process is: smelting and casting→face milling→rough rolling blanking→thick trimming→intermediate annealing→degreasing and cleaning→rolling and leaving bottom material→intermediate Annealing → Degreasing cleaning → Finished product rolling → Finished product annealing → Stretch bending straightening → Finished product cleaning → Slitting into storage, among which, in the rolling bottom material, 55% of the processing rate is selected for the rolling of the zinc white copper bottom material ; Before the intermediate annealing, the zinc-nickel-nickel copper base material is uncoiled, and the zinc-nickel-nickel copper base material after the uncoiling treatment is heated to a temperature of 550 ° C, and heat treatment is carried out at this temperature for 10 hours; in the finished product rolling , choose 25% processing rate ...

Embodiment 3

[0028] Example 3, the processing technology of controlling the mechanical properties of zinc-nickel-nickel copper by processing rate, the specific processing process is: smelting and casting→face milling→rough rolling blanking→thick trimming→intermediate annealing→degreasing and cleaning→rolling and leaving bottom material→intermediate Annealing → Degreasing cleaning → Finished product rolling → Finished product annealing → Stretch bending straightening → Finished product cleaning → Strip storage, among which, in the rolling bottom material, 65% of the processing rate is selected for the rolling of the zinc white copper bottom material ; Before the intermediate annealing, the zinc-nickel-nickel copper base material is uncoiled, and the zinc-nickel-nickel copper base material after the unwinding treatment is heated to a temperature of 500 ° C, and heat treatment is carried out at this temperature for 12 hours; in the finished product rolling , use 50% processing rate to roll the...

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Abstract

The invention discloses a machining process of zinc-copper with mechanical properties controlled by a machining rate. The process comprises the following steps of: smelting and casting; milling surfaces; roughly rolling and cogging; thickening and cutting edges; carrying out intermediate annealing; degreasing and washing; rolling a backing material; carrying out intermediate annealing; degreasing and washing; rolling a finished product; annealing the finished product; stretching the bent part and straightening; washing the finished product; splitting into bars and warehousing. The zinc-copper backing material is rolled at a machining rate of 35-65% in the step of rolling the backing material; before the step of intermediate annealing, the zinc-copper backing material is unrolled and then heated to 500-600 DEG C, and the temperature is preserved for 7-12 hours and heat treatment is carried out; the finished product is rolled at a machining rate of 10-50% in the step of rolling the finished product; in the step of annealing the finished product, the rolled finished product is subjected to low-temperature recovery heat treatment through an annealing furnace, the temperature is controlled to be 300-400 DEG C, and the temperature is preserved for 3-7 hours. A final zinc-copper product has uniform and good crystal grain structure, the internal residual stress of a material is small, the mechanical property fluctuation is small, and the finished product rate is high.

Description

technical field [0001] The invention relates to the technical field of zinc-nickel-nickel processing, in particular to a processing technology in which the processing rate controls the mechanical properties of zinc-nickel-nickel. Background technique [0002] Heat treatment controls the mechanical properties of zinc-nickel-nickel copper, heating the zinc-nickel-nickel material with predetermined deformation to a certain temperature, and keeping it warm for a period of time to obtain a zinc-nickel-nickel product with certain mechanical properties. [0003] Since zinc white copper belongs to the ternary alloy, the microstructure change during heat treatment is more complicated than that of the binary alloy. After metallographic analysis of hard zinc-nickel-nickel products, it is found that its structure is between complete crystallization and incomplete crystallization. If the traditional heat treatment method in the finished product stage is used to control the mechanical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08
Inventor 张玲俐左悦铭杨建设谢宁
Owner ANHUI XINKE NEW MATERIALS
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