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A kind of preparation method of platinum-silver alloy ultra-narrow strip

A platinum-silver alloy and thin strip technology, applied in metal rolling and other directions, can solve problems such as unsatisfactory performance requirements, scratches, and low yield, and achieve stable and efficient rolling methods, satisfying use performance, and stable wire performance Effect

Active Publication Date: 2021-07-23
GRIKIN ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used platinum-silver alloy strip in China is 0.008mm±0.0005mm in thickness and 0.08mm±0.005mm in width. Oxidation color, no obvious defects such as pits, necking, penetrating scratches, etc., but currently only one or two units in China can process, and the preparation adopts conventional strip rolling methods. The preparation is not applicable, the yield of the obtained product is extremely low, less than 10%, and the appearance of the strip is mostly uneven, there are problems such as scratches, which cannot meet the performance requirements

Method used

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  • A kind of preparation method of platinum-silver alloy ultra-narrow strip
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  • A kind of preparation method of platinum-silver alloy ultra-narrow strip

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Effect test

Embodiment 1

[0025] Prepare platinum-silver alloy ultra-narrow strips according to the following steps:

[0026] The platinum-silver wire with a diameter of 0.02mm is annealed. Before annealing, the properties of the wire meet the elastic modulus of 800Mpa and the elongation of 1.2%. A precision winding machine is used, the winding tension is 0.5g, and the annealing atmosphere is hydrogen. Roll the annealed wire with an ultra-precision 12-high rolling mill. The working rolls of the rolling mill are ceramic rolls with a surface roughness of Ra0.1; should be 5mm; the rolling speed is 0.5 m / s, the winding tension is 0.5g during the rolling process, and the single deformation is 30%. Finally, a platinum-silver alloy ultra-narrow thin strip with a width of 0.05mm and a thickness of 0.008mm is obtained. The silver alloy strip is flat in a free state, without warping, twisting and other defects. The surface should be bright and smooth, without oxidation color, without obvious pits, necking, pene...

Embodiment 2

[0028] Prepare platinum-silver alloy ultra-narrow strips according to the following steps:

[0029] The platinum-silver wire with a diameter of 0.05mm is annealed. Before annealing, the properties of the wire meet the elastic modulus of 780Mpa and the elongation rate of 1.2%. A precision winding machine is used, the winding tension is 0.5g, and the annealing atmosphere is hydrogen. Roll the annealed wire with an ultra-precision 12-high rolling mill. The working roll of the rolling mill is a ceramic roll with a surface roughness of Ra0.1; should be 5mm; the rolling speed is 0.5 m / s, the rolling tension is 0.5g, and the single deformation is 40%. Finally, a platinum-silver alloy ultra-narrow strip with a width of 0.08mm and a thickness of 0.009mm is obtained. The silver alloy strip is flat in a free state, without warping, twisting and other defects. The surface should be bright and smooth, without oxidation color, without obvious pits, necking, penetrating scratches and other ...

Embodiment 3

[0031] Prepare platinum-silver alloy ultra-narrow strips according to the following steps:

[0032] The platinum-silver wire with a diameter of 0.1mm is annealed. Before annealing, the properties of the wire meet the elastic modulus of 780Mpa and the elongation of 1.3%. A precision winding machine is used, the winding tension is 1g, and the annealing atmosphere is hydrogen. Roll the annealed wire with an ultra-precision 12-high rolling mill. The working rolls of the rolling mill are ceramic rolls with a surface roughness of Ra0.1; should be 5mm; the rolling speed is 0.5 m / s, the tension of the take-up and take-off line during the rolling process is 1g, and the single deformation is 50%. Finally, a platinum-silver alloy ultra-narrow thin strip with a width of 0.1mm and a thickness of 0.01mm is obtained after rolling. The alloy strip is flat in a free state, without warping, twisting and other defects. The surface should be bright and smooth, without oxidation color, without ob...

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Abstract

The invention discloses a preparation method of a platinum-silver alloy ultra-narrow thin strip belonging to the technical field of alloy processing. After the platinum-silver alloy wire is annealed and heat treated, the platinum-silver alloy wire is rolled with a twelve-roll mill, and the ultra-narrow platinum-silver alloy with a width of 0.05-0.5mm and a thickness of 0.005-0.01mm can be stably obtained. Thin strip. The platinum-silver ultra-narrow thin alloy strip is flat in the free state, without warping and torsion defects, the surface should be bright, flat, without oxidation color, without obvious pits, necking, penetrating scratch defects, and the breaking force is greater than 100g, to meet product performance requirements.

Description

technical field [0001] The invention belongs to the technical field of alloy processing, and in particular relates to a method for preparing ultra-narrow strips of platinum-silver alloys. Background technique [0002] Platinum-silver alloy strip is a key material for accelerometers. The accelerometer is an important measurement element of inertial navigation, inertial guidance and control detection equipment. Both inertial navigation and inertial guidance use the sensitivity of the accelerometer to measure the motion acceleration of the carrier. At present, accelerometers have been widely used in the guidance and control of aviation, navigation, spaceflight and weapons. [0003] Platinum-silver alloy ultra-thin strip is a rare and precious metal elastic material with excellent performance. It is mainly used to develop single-axis pendulum accelerometers supported by suspension wires. The main domestic users are Baoji 212 Factory and Aviation 304 Institute. The acceleromete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/16B21B3/00
CPCB21B1/166B21B3/00
Inventor 侯智超罗瑶王鹏贺昕李勇军吕保国关俊卿马贤杰
Owner GRIKIN ADVANCED MATERIALS