A copper strip production process for automotive contact parts

Abstract

The invention discloses a production technology of a copper strip for an automobile contact and belongs to the technical field of copper plate and strip production technologies. The production technology comprises 1, ingot melting casting, 2, surface milling, 3, hot rolling, 4, rough rolling, 5, primary annealing, 6, primary washing, 7, medium rolling, 8, secondary annealing, 9, secondary cleaning, 10, medium finish rolling, 11, tertiary annealing, 12, tertiary washing, 13, finish rolling, 14, quaternary washing and 15, leveling. The production technology improves annealing process quality and copper strip surface quality, reduces a workshop cost and improves productive profits.

Description

technical field

[0001] The invention relates to the technical field of copper strip production technology, and more specifically, relates to a copper strip production technique for automobile contact parts. Background technique

[0002] With the development of the national economy and the continuous improvement of people's living standards, automobiles have entered thousands of households as a mass commodity. A large number of connectors are required to realize electrical transmission and control on automobiles. Automotive connectors mainly include contacts, housings, The insulator and accessories are composed of four parts. The contact piece is the core part of the automotive connector to complete the electrical connection function. It is made of H65 brass strip through stamping, bending, electroplating and other processing methods.

[0003] The quality of automobile contact parts directly affects the safety performance of automobiles, so the production requirements are str...

Examples

Embodiment 1

[0032] A kind of copper strip production process that is used for automobile contact part of the present embodiment, it is the H02 specification H65 brass strip of 0.8mm thickness, and H02 specification represents the semi-hard state of copper strip, and its Vickers hardness is 100-130, H65 The composition is: copper Cu: 63.5~68.0; zinc Zn: balance; lead Pb: ≤0.03; lead Pb: ≤0.03; boron P: ≤0.01; 0.002, its performance is between H68 and H62, the price is cheaper than H68, it can withstand cold and hot pressure processing well, and it has a tendency of corrosion and cracking. A kind of copper strip production process that is used for automobile contacts its steps are as follows:

[0033] (1) Melting ingot; (2) Face milling; (3) Hot rolling; (4) Rough rolling; (5) Primary annealing; (6) Primary cleaning; (7) Intermediate rolling; (8) Secondary annealing; (9) Second cleaning; (10) Middle finishing rolling; (11) Three times annealing; (12) Three cleanings; (13) Finish rolling; (...

technical field

[0001] The invention relates to the technical field of copper strip production technology, and more specifically, relates to a copper strip production technique for automobile contact parts. Background technique

[0002] With the development of the national economy and the continuous improvement of people's living standards, automobiles have entered thousands of households as a mass commodity. A large number of connectors are required to realize electrical transmission and control on automobiles. Automotive connectors mainly include contacts, housings, The insulator and accessories are composed of four parts. The contact piece is the core part of the automotive connector to complete the electrical connection function. It is made of H65 brass strip through stamping, bending, electroplating and other processing methods.

[0003] The quality of automobile contact parts directly affects the safety performance of automobiles, so the production requirements are str...

Examples

Embodiment 1

[0032] A kind of copper strip production process that is used for automobile contact part of the present embodiment, it is the H02 specification H65 brass strip of 0.8mm thickness, and H02 specification represents the semi-hard state of copper strip, and its Vickers hardness is 100-130, H65 The composition is: copper Cu: 63.5~68.0; zinc Zn: balance; lead Pb: ≤0.03; lead Pb: ≤0.03; boron P: ≤0.01; 0.002, its performance is between H68 and H62, the price is cheaper than H68, it can withstand cold and hot pressure processing well, and it has a tendency of corrosion and cracking. A kind of copper strip production process that is used for automobile contacts its steps are as follows:

[0033] (1) Melting ingot; (2) Face milling; (3) Hot rolling; (4) Rough rolling; (5) Primary annealing; (6) Primary cleaning; (7) Intermediate rolling; (8) Secondary annealing; (9) Second cleaning; (10) Middle finishing rolling; (11) Three times annealing; (12) Three cleanings; (13) Finish rolling; (...