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Preparation method of nickel-molybdenum alloy extruded tube target

A nickel-molybdenum alloy, extrusion tube technology, applied in metal material coating process, vacuum evaporation coating, coating and other directions, can solve the problem of lack of large-scale mass production capacity, achieve low energy loss and small square resistance , the effect of improving the conversion efficiency

Pending Publication Date: 2020-12-11
丰联科光电(洛阳)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nickel-molybdenum alloy rotary sputtering tubular target required for photovoltaic thin film cells has not yet been mass-produced on a large scale

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0026] A method for preparing a nickel-molybdenum alloy extruded tube target, comprising the following steps:

[0027] Step 1: mixing nickel powder and molybdenum powder to obtain a mixed powder;

[0028] Step 2: pass the mixed powder in step 1 through a 150-250 mesh sieve, and set aside;

[0029] Step 3: Put the mixed powder processed in Step 2 into a rubber circular mold with a tapered mandrel inside, and seal the end with a rubber plug;

[0030] Step 4: hoist the powder-filled mold as a whole into the working cavity of the cold isostatic press, press and form, and demould to obtain a powdery nickel-molybdenum alloy tube, which is ready for use;

[0031] Step 5: Place the demolded powder nickel-molybdenum alloy tube in a hydrogen atmosphere sintering furnace, sinter and densify it, and obtain a dense sintered nickel-molybdenum alloy tube blank;

[0032] Step 6: Use lathe equipment to process the sintered nickel-molybdenum alloy tube billet into the extrusion spare billet s...

Embodiment 1

[0046] A method for preparing a nickel-molybdenum alloy extruded tube target, comprising the following steps:

[0047] Step 1. Prepare powder, choose molybdenum powder and nickel powder, the physical properties of the powder are: the Mo content of the molybdenum powder is ≥99.95%, and the particle size is 3~5μm; the Ni content of the nickel powder (FNiTZ121) is ≥99.5%, and the particle size is 2.5~7.0μm ;

[0048] Step 2, powder making, nickel powder and molybdenum powder are weighed according to the mass ratio of 7:3 and put into a V-type mixer for mixing. The single mixing weight is controlled at a filling rate of 30% to 50%. 2 hours of mixing + 2 hours of shutdown, four cycles, the total mixing time is 8 hours;

[0049] Step 3, sieve the mixed nickel-molybdenum powder mixed in step 2, the sieve aperture is 160 mesh, and the under-sieve is for subsequent use;

[0050] Step 4. Put the sieved nickel-molybdenum alloy powder into the selected mold. The size of the rubber mold ...

Embodiment 2

[0058] A method for preparing a nickel-molybdenum alloy extruded tube target, comprising the following steps:

[0059] Step 1. Prepare powder, choose molybdenum powder and nickel powder, the physical properties of the powder are: the Mo content of the molybdenum powder is ≥99.95%, and the particle size is 3~5μm; the Ni content of the nickel powder (FNiTZ121) is ≥99.5%, and the particle size is 2.5~7.0μm ;

[0060] Step 2, powder making, nickel powder and molybdenum powder are weighed according to the mass ratio of 9:1 and put into a V-type mixer for mixing. The single mixing weight is controlled at a filling rate of 30% to 50%. 2 hours of mixing + 2 hours of shutdown, four cycles, the total mixing time is 8 hours;

[0061] Step 3, sieve the mixed nickel-molybdenum powder mixed in step 2, the sieve aperture is 160 mesh, and the under-sieve is for subsequent use;

[0062] Step 4. Put the sieved nickel-molybdenum alloy powder into the selected mold. The size of the rubber mold ...

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Abstract

The invention provides a preparation method of a nickel-molybdenum alloy extruded tube target. The preparation method comprises the following steps of preparing nickel-molybdenum mixed powder; conducting powder metallurgy pressing and sintering; and conducting hot extrusion on a nickel-molybdenum alloy tube blank. According to the preparation method, a nickel-molybdenum alloy extruded tube targetproduct with a uniform phase is obtained by utilizing a powder metallurgy process and a hot extrusion process, the relative density of the prepared nickel-molybdenum alloy extruded tube target is larger than or equal to 99%, the prepared nickel-molybdenum alloy extruded tube target is beneficial for greatly improving the conversion efficiency of a CIGS photovoltaic cell, and the cost of a cell preparation manufacturer is reduced.

Description

technical field [0001] The invention belongs to the field of target material processing and preparation, and in particular relates to a method for preparing a nickel-molybdenum alloy extruded tube target. Background technique [0002] Energy is the main driving force for social and economic development, and renewable clean energy is the main direction for countries around the world to find solutions. Solar photovoltaic power generation gradually occupies an important seat in the world's energy consumption, gradually replacing some conventional energy sources, and becoming the main body of the world's energy supply. Molybdenum alloy tube target can be used to prepare the back electrode of thin-film solar cells, which can greatly increase the open circuit voltage of thin-film solar cells and improve conversion efficiency, so the demand in the entire solar energy industry chain is increasing. [0003] Nickel-molybdenum alloy materials are used in the production of photovoltaic...

Claims

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Application Information

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IPC IPC(8): C23C14/35B22F5/00C22C19/03
CPCC23C14/35C23C14/3414C22C19/03B22F5/00
Inventor 彭光辉孙虎民张雪凤方宏孙良金松来
Owner 丰联科光电(洛阳)股份有限公司
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