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Cold-rolling production method for controlled expansion alloy strip

A production method and alloy strip technology, applied in metal rolling and other directions, can solve problems such as unstable product performance, time-consuming and waste cost, and reduce material utilization rate, so as to reduce the number of debugging times and time, improve production efficiency, and yield high effect

Active Publication Date: 2017-05-10
无锡华生精密材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. The diameter or weight of the coil is too small, and the efficiency of frequent winding and unwinding is too low, and each time the coil needs to be adjusted, the head and the tail of the rolled coil need to be removed, which not only wastes time but also greatly reduces the utilization rate of materials, and wastes time and waste. , the product performance is unstable and the yield is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The cold rolling production method of the constant expansion alloy strip of the present embodiment comprises the following steps:

[0029] The first step is to choose materials

[0030] Choose refined hot-rolled or cold-rolled coils to ensure that the content of smelting impurities is low. When rolling to a thickness of 0.1mm, no peeling will occur. The thickness of raw coils should be controlled below 1.5mm, which is suitable for rough rolling of twenty-high rolling mills.

[0031] The second step, a rolling

[0032] Cold rolling with a 20-high rolling mill, the rolling tension is controlled at 80N / mm 2 , the rolling speed is 320m / min, and the billet is roughly rolled to a thickness of 0.31mm.

[0033] The third step, a cleaning

[0034] Remove the rolling oil remaining on the surface of the strip during rolling at a speed of 80m / min on the degreasing and cleaning unit to prepare for annealing.

[0035] The fourth step, an annealing

[0036] Anneal the once-cleane...

Embodiment 2

[0052] The characteristics of the cold rolling production method of the constant expansion alloy strip of the present embodiment comprise the following steps:

[0053] The first step is to choose materials

[0054] Choose refined hot-rolled or cold-rolled coils to ensure that the content of smelting impurities is low. When rolling to a thickness of 0.1mm, no peeling will occur. The thickness of raw coils should be controlled below 1.5mm, which is suitable for rough rolling of twenty-high rolling mills.

[0055] The second step, a rolling

[0056] Cold rolling with a 20-high rolling mill, the rolling tension is controlled at 120N / mm 2 , the rolling speed is 300m / min, and the billet is roughly rolled to a thickness of 0.305mm.

[0057] The third step, a cleaning

[0058]The semi-finished product that has been rolled once is removed on the degreasing and cleaning unit at a speed of 90m / min to remove the rolling oil remaining on the surface of the strip during rolling to prepar...

Embodiment 3

[0076] The characteristics of the cold rolling production method of the constant expansion alloy strip of the present embodiment comprise the following steps:

[0077] The first step is to choose materials

[0078] Choose refined hot-rolled or cold-rolled coils to ensure that the content of smelting impurities is low. When rolling to a thickness of 0.1mm, no peeling will occur. The thickness of raw coils should be controlled below 1.5mm, which is suitable for rough rolling of twenty-high rolling mills.

[0079] The second step, a rolling

[0080] Cold rolling with a 20-high rolling mill, the rolling tension is controlled at 150N / mm 2 , the rolling speed is 270m / min, and the billet is roughly rolled to a thickness of 0.3mm;

[0081] The third step, a cleaning

[0082] Remove the rolling oil remaining on the surface of the strip during rolling on the degreasing cleaning unit at a speed of 100m / min to prepare for annealing.

[0083] The fourth step, an annealing

[0084] Ann...

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Abstract

The invention relates to a machining process for an alloy strip, in particular to a cold-rolling production method for a controlled expansion alloy strip. The cold-rolling production method is characterized by comprising the steps that a refined hot-rolled coiled plate is selected; the refined hot-rolled coiled plate is subjected to primary rolling, washing and annealing; then the refined hot-rolled coiled plate is subjected to secondary rolling, washing and annealing; and then the refined hot-rolled coiled plate is subjected to pull straightening, high-temperature aging treatment and reverse pull straightening to obtain the controlled expansion alloy strip. By adoption of the method for producing the controlled expansion alloy strip, no welding is needed, no welding seam exists in the strip, and the controlled expansion alloy strip is large in coiling diameter and good in uniformity and is 9.3*10<-6> DEG C / m in linear expansion coefficient at 20-400 DEG C.

Description

technical field [0001] The invention relates to a processing technology of an alloy strip, specifically a cold rolling production method of a constant expansion alloy strip, and is especially suitable for the production of sealing structural materials with glass, ceramics, etc. in the electric vacuum industry. Background technique [0002] Constant expansion alloys are also called sealing alloys, which are used for sealing with glass, ceramics and other materials. The linear expansion coefficient of the alloy is similar to that of the sealed glass, ceramics and other materials within a certain temperature range. Make matching seals. Constant expansion alloys have high electrical and thermal conductivity, high strength, formability and weldability, and can be firmly combined with the materials to be sealed. In the process of use, in order to ensure the airtightness of the seal, it is required that the constant expansion alloy does not allow structural changes, the content of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22C21D8/02C21D1/26C21D1/74
CPCB21B1/222B21B2001/228C21D1/26C21D1/74C21D8/0268
Inventor 余叙斌赵宇汤福朋计达张士宏
Owner 无锡华生精密材料股份有限公司
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