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Production method of T2 copper strap used for automobile radiator

A technology for automobile water tank and copper strip is applied in the field of T2 copper strip preparation of automobile water tank, which can solve the problems of long process flow, expensive machinery and equipment, waste of manpower and material resources, etc., and achieves short process flow, fewer intermediate annealing times, and cold working rate. big effect

Inactive Publication Date: 2012-03-21
宁波市鄞州锡青铜带制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of T2 copper is usually made by uniform annealing and hot-rolled blanking. The mechanical equipment is expensive, the process is long, and a lot of manpower and material resources are wasted.

Method used

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  • Production method of T2 copper strap used for automobile radiator

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Embodiment 1

[0018] Firstly, the raw materials need to be proportioned. In this embodiment, the copper and silver content of the raw materials is 99.9%, the iron content is 0.002%, the bismuth content is 0.0003% to 0.0005%, and the zinc content is 0.001% to 0.005%.

[0019] After determining the ratio of raw materials, the raw materials are sent to the furnace for melting. The charge melting temperature is raised to 1160°C to 1250°C in the atmosphere. High-purity copper is easy to suck air into the raw material during the melting process, causing air bubbles to form inside the raw material. Therefore, in this embodiment, after the raw material is completely liquefied, a layer of dry charcoal is covered on the liquid surface, and then the slag is removed by stirring. Sampling, analysis, and composition adjustment. After the ingredients meet the formula requirements, transfer the raw materials covered with dry charcoal into the holding furnace. The temperature of the holding furnace is 1100°...

Embodiment 2

[0023] Proportioning raw materials, in this embodiment, the copper and silver content of the raw materials is 99.93%, the iron content is 0.003% to 0.004%, the bismuth content is 0.0004% to 0.0008%, and the zinc content is 0.001% to 0.002%.

[0024] After determining the ratio of raw materials, the raw materials are sent to the furnace for melting. The charge melting temperature is raised to 1150°C to 1280°C in the atmosphere. High-purity copper is easy to suck air into the raw material during the melting process, causing air bubbles to form inside the raw material. Therefore, in this embodiment, after the raw material is completely liquefied, a layer of dry charcoal is covered on the liquid surface, and then the slag is removed by stirring. Sampling, analysis, and composition adjustment. After the ingredients meet the formula requirements, transfer the raw materials covered with dry charcoal into the holding furnace. The temperature of the holding furnace is 1120°C to 1130°C,...

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Abstract

The invention discloses a production method of a T2 copper strap used for an automobile radiator, which belongs to the field of material processing, and solves the problems of the prior art that the process flow of the T2 copper strap production process is longer and the required equipment is expensive. The production method of the T2 copper strap used for the automobile radiator comprises the following steps: batching and melting raw material, and covering dry wood coal on liquid raw material; transferring the liquid raw material covered with the dry wood coal into a heat preserving furnace with the temperature of 1100 DEG C to 1150 DEG C for 30 to 45 minutes, then performing horizontal continuous casting, the casting temperature being 1220 DEG C to 12050 DEG C, and adopting drawing, stopping and returning process; milling and cold rolling cogging, then performing intermediate annealing and rough rolling to reduce-second intermediate annealing-surface cleaning and passivating-cold finish rolling-low temperature heat treatment on finished product-surface cleaning and passivating-bending and flattening, and obtaining the required T2 copper strap. With the invention, the existing homogenizing anneal procedure can be omitted, the additionally arranged expensive equipment can be avoided, the complexity of the process is reduced, and the cost can be saved.

Description

technical field [0001] The invention relates to a preparation method of a T2 copper strip, in particular to a preparation method of a T2 copper strip used for an automobile water tank. Background technique [0002] According to the national standard GB / T 5231-2001, pure copper is divided into No. 1 copper (T1 copper), No. 2 copper (T2 copper), and No. 3 copper (T3 copper) according to the chemical composition and product shape. Among them, the content of copper and silver in T2 copper should not be less than 99.9%, and the content of copper and silver in T3 copper should not be less than 99.7%. The content of impurities is different due to the different purity of copper and silver. These impurity elements all reduce its thermal conductivity to varying degrees, among which titanium, phosphorus, iron, silicon, arsenic, etc. reduce the most, bismuth, aluminum, antimony, manganese, nickel, etc., and silver, chromium, magnesium, zinc, etc. least. The content of impurity elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02C22F1/08
Inventor 祝福泉唐存国
Owner 宁波市鄞州锡青铜带制品有限公司
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