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Production technology of phosphor bronze belt material

A production process, phosphor bronze technology, which is applied in the field of phosphor bronze strip production process, can solve the problems of short service life and few times of plugging and unplugging connectors, and achieve the goal of improving service life, fatigue resistance and yield strength Effect

Inactive Publication Date: 2011-04-20
ANHUI XINKE NEW MATERIALS
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  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the material produced by the usual tin phosphor bronze production process can only achieve a yield ratio of about 0.85, and the number of plugging and unplugging of the connector is less, and its service life is shorter

Method used

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  • Production technology of phosphor bronze belt material
  • Production technology of phosphor bronze belt material

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Embodiment Construction

[0010] Such as figure 1 The production process of a phosphor bronze strip shown includes the following steps: a) horizontal continuous casting, b) homogenizing annealing, c) double-sided milling, d) billet rolling, e) intermediate annealing, f) material preparation rolling, g) trimming, h) secondary intermediate annealing, i) material cleaning, j) bottom rolling, k) bottom annealing, l) finished product rolling, m) finished product annealing, n) finished product cleaning and o) In the straightening and homogenizing annealing steps, the temperature in the bell furnace is 720°, and the annealing time is 5 hours. In the double-side milling step, the upper and lower sides of the strip are milled by 0.2mm respectively. In the billet rolling step, the strip is rolled from 16 mm to 2.5 mm. In the intermediate annealing step, the temperature in the bell furnace is 520°, and the annealing time is 4 hours. In the secondary intermediate annealing step, the temperature in the bell furn...

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Abstract

The invention discloses a production technology of a phosphor bronze belt material, comprising the following steps: a) horizontally continuous casting; b) evenly annealing; c) double-sided milling; d) cogging and rolling; e) middle annealing; f) rolling manufactured materials; g) cutting edges; h) secondary middle annealing; i) cleaning the manufactured materials; j) rolling leftover; k) annealing the leftover; l) rolling a finished product; m) annealing the finished product; n) cleaning the finished product; and o) straightening the strip shape, wherein, in the step I) of rolling a finished product, the press force of a hydraulic press cylinder of a finishing mill is 100-120 ton; and in the step m) of annealing the finished product, the temperature in the furnace is 180-200 DEG C, and the annealing time in the furnace is 3-5 hours. Because of adopting the above structure, the invention has the advantage of improving the yield strength of bronze so as to improve the material fatigue durability. The yield strength of the original annealing technology is 534, and the yield ratio is 0.85; and after the technology is improved, the yield strength is 594, and the yield ratio is 0.95 which is improved by 12%.

Description

technical field [0001] The invention relates to the technical field of phosphor bronze strips, in particular to a production process of phosphor bronze strips. Background technique [0002] The ratio of yield strength to tensile strength is called yield ratio. The higher the yield strength of a material, the better its fatigue resistance. Therefore, it is usually required that the material has a high yield strength under the premise of constant tensile strength, that is, it is required to increase the yield ratio of the material. For materials with high fatigue resistance, the yield ratio must reach about 0.95. At present, the yield strength ratio of the material manufactured by the usual tin phosphor bronze production process can only reach about 0.85, the number of times of plugging and unplugging of the connector is small, and its service life is short. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a prod...

Claims

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Application Information

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IPC IPC(8): C22F1/08
Inventor 张玲俐杨建设
Owner ANHUI XINKE NEW MATERIALS
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