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High corrosion resistance chromium bronze manufacturing method

A technology with high corrosion resistance and manufacturing method, applied in the field of metal materials and heat treatment, can solve the problems of improper smelting method and lack of quality, and achieve the effects of good wear resistance, simple control and novel components

Inactive Publication Date: 2018-02-06
叶秀兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problem of lack of quality caused by improper smelting methods in the existing chromium bronze manufacturing process. The present invention provides a highly corrosion-resistant chromium bronze manufacturing method. By changing the smelting process, its quality is improved , to achieve the purpose of improving its quality

Method used

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Embodiment Construction

[0017] The present invention will be further described below:

[0018] A high corrosion-resistant chrome bronze manufacturing method, comprising the following preparation steps:

[0019] (1) The preparation of each component of chrome bronze: the mass percent of each component of chrome bronze is: Cr: 1.5~2.5%, the rest is Cu;

[0020] (2) Add cathode copper, furnace charge and charcoal covering agent in the preheated crucible, charcoal once adds enough, and thickness is 120-140mm;

[0021] (3) Heat up to 1350°C to melt copper rapidly;

[0022] (4) Remove the charcoal, add pure Cr quickly, the amount of Cr added is 1-1.5 times of the nominal composition, wait for 2-5min, and stir once;

[0023] (5) Pre-furnace detection after heating up and smelting for 10-15 minutes;

[0024] (6) Quickly cast into shape after passing the test;

[0025] (7) Carry out turning and milling processing on formed parts;

[0026] (8) Carry out solid solution treatment at a temperature of 900°C f...

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Abstract

A method for manufacturing chromium bronze with high corrosion resistance, belonging to the technical field of metal materials and heat treatment, comprising the following preparation steps: the mass percentage of each component of chromium bronze is: Cr: 1.5-2.5%, and the rest is Cu; Add cathode copper, furnace charge and charcoal covering agent to the crucible, add enough charcoal at one time, the thickness is 120-140mm; raise the temperature to 1350°C to melt the copper rapidly; remove the charcoal, and quickly add pure Cr, the amount of Cr added is 1-1.5 times the nominal composition, wait for 2-5min, stir once; heat up and smelt for 10-15min before furnace inspection; quickly pour into shape after passing the inspection; turn and mill the molded parts; turn and mill the parts for 1.5 hours , solution treatment at a temperature of 900°C; aging treatment at 800°C for 6 hours.

Description

technical field [0001] The invention belongs to the technical field of metal materials and heat treatment, and in particular relates to a method for manufacturing chrome bronze with high corrosion resistance. Background technique [0002] Copper and its alloys have excellent chemical, physical and mechanical properties, and have good corrosion resistance in the atmosphere, fresh water, sea water and non-oxidizing acidic media, so they are often used as functional materials and structural materials, and are widely used in aviation and shipbuilding , electrical and other fields, its consumption is second only to aluminum alloy in non-ferrous alloy materials. [0003] Chromium bronze has high strength and hardness, good electrical and thermal conductivity, and good processing and forming properties. Widely used in high temperature conductive wear-resistant parts of electrical equipment. Mainly used in the manufacture of motor commutators, collector rings, high-temperature swi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C9/00C22F1/08
CPCC22C9/00C22C1/02C22F1/08
Inventor 叶秀兰
Owner 叶秀兰
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