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Molybdenum-copper thin plate or ultrathin plate and molybdenum-copper foil as well as preparation methods thereof

A technology of molybdenum-copper alloy and ultra-thin plate, which is applied in the field of molybdenum-copper alloy thin plate, ultra-thin plate and foil material, can solve the problems of high production cost, low production efficiency, complicated preparation process, etc., so as to improve production efficiency and reduce The time to release the binder and the effect of less process steps

Active Publication Date: 2014-11-12
上海瑞钼特科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem solved by the present invention is to overcome the complex preparation process of molybdenum-copper alloy ultra-thin plates in the prior art, low production efficiency, high production cost, etc., and provide a molybdenum-copper alloy thin plate, ultra-thin plate and foil and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Preparation method of molybdenum-copper alloy sheet and ultra-thin sheet:

[0040] (1) Weigh 95% molybdenum powder (the average Fischer particle size of the powder is 2.5 μm) and 5% copper powder (the average Fischer particle size of the powder is 50 μm) by weight percentage as metal powder raw materials, and add relative metal powder The bisphenol A type liquid epoxy resin of raw material gross weight 0.35%, mixes 1 hour with the rotating speed of 10rpm in mechanical powder mixer, until mixes evenly to obtain compound;

[0041] (2) Place the mixture in an oven, heat it to 100°C in an air atmosphere, and keep it warm for 50 minutes; use manual sieving to sieve 20-mesh powder;

[0042] (3) The feeding device is loaded between the rotating rolls, and the powder is continuously rolled in the rolling mill by using the powder bonding rolling method, and the unit rolling pressure is 0.8 tons / cm 2 , the rolling speed is 8m / min, and a green slab with a thickness of 0.3mm is ob...

Embodiment 2

[0047] Preparation method of molybdenum-copper alloy sheet and ultra-thin sheet:

[0048](1) Weigh 95% of molybdenum powder (the average Fischer particle size of the powder is 2.2 μm) and 5% copper powder (the average Fischer particle size of the powder is 42 μm) by weight percentage as metal powder raw materials, and add relative metal powder The HPMC-75JM hydroxypropyl methylcellulose of raw material gross weight 0.15%, mixes 1 hour with the rotating speed of 50rpm in the mechanical type powder mixer, until mixing evenly obtains the mixture;

[0049] (2) Place the mixture in an oven, heat it to 100°C in an air atmosphere, and keep it warm for 40 minutes; use manual sieving to sieve the 160-mesh powder;

[0050] (3) Preheat the rolls of the powder rolling mill to 40°C; put them between the rotating rolls through the feeding device, and use the powder bonding rolling method to continuously roll the powder in the rolling mill with a unit rolling pressure of 1.2 ton / cm 2 , the...

Embodiment 3

[0055] Preparation method of molybdenum-copper alloy sheet and ultra-thin sheet:

[0056] (1) Weigh 95% molybdenum powder (the average Fischer particle size of the powder is 4.8μm) and 5% copper powder (the average Fischer particle size of the powder is 42μm) by weight percentage as metal powder raw materials, and add relative metal powder The PVA24-88 type polyvinyl alcohol of raw material gross weight 0.2%, mixes 1 hour with the rotating speed of 50rpm in the mechanical powder mixer, until mixes evenly to obtain compound;

[0057] (2) Place the mixture in an oven, heat it to 120°C in an air atmosphere, and keep it warm for 30 minutes; use vibration screening to sieve 20-mesh powder;

[0058] (3) Put it between the rotating rolls through the feeding device, and use the powder bonding rolling method to continuously roll the powder in the rolling mill. The unit rolling pressure is 1.4 tons / cm 2 , the rolling speed is 5m / min, and a green slab with a thickness of 1.0mm is obtain...

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Abstract

The invention discloses a molybdenum-copper thin plate or ultrathin plate and a molybdenum-copper foil as well as preparation methods thereof. The preparation method of the molybdenum-copper thin plate or ultrathin plate comprises the following steps of: (1) uniformly mixing metal powder raw materials with one or more types of adhesives to obtain a mixture, wherein the metal powder raw materials comprise 50-95% of molybdenum powder and 5-50% of copper powder, and the use amount of the adhesive accounts for 0.15-1% of the total weight of the metal powder raw materials; (2) drying the mixture at 80-120 DEG C, and then sieving the mixture by virtue of a sieve with the granularity of 20-160 meshes, so as to obtain mixed powder with favorable flowability; (3) preparing the powder into a raw plate blank with the thickness of 0.3-2mm by utilizing a powder bonding, rolling and forming method; and (4) sintering and cooling the raw plate blank under an oxygen-free condition, so as to obtain the molybdenum-copper thin plate or ultrathin plate. The obtained molybdenum-copper thin plate or ultrathin plate is uniform in internal organizational structure and high in purity; and then the molybdenum-copper thin plate or ultrathin plate can be used for preparing a molybdenum-copper foil product only by virtue of carrying out 1-6 passes of cold rolling or carrying out warm-rolling at the temperature of 30-300 DEG C.

Description

technical field [0001] The invention relates to the field of alloy preparation, in particular to a molybdenum-copper alloy thin plate, ultra-thin plate and foil, and their preparation methods. Background technique [0002] In the refractory metal material industry, refractory metals and their alloy materials with a plate thickness of less than 0.1mm are usually called foils; refractory metals and their alloy materials with a plate thickness of 0.1-3mm are called thin plates; material thickness Most of the sheets concentrated in the range of 0.1mm to 1mm are named "ultra-thin sheets". The existing production technologies of refractory metal alloy ultra-thin sheets at home and abroad mainly include powdered sintering method and traditional sintering and rolling method. In terms of industry division, molybdenum copper alloy belongs to the refractory metal material alloy industry. [0003] The powdered sintering method is as described in the US patent (US 4605599A), but the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/16B22F3/18C22C27/04C22C1/04
Inventor 王涛
Owner 上海瑞钼特科技股份有限公司