CN104141066A

CN104141066A - Cobalt-base alloy material and manufacturing method thereof

Info

Publication number: CN104141066A
Application number: CN201410321981.XA
Authority: CN
Inventors: 熊靖; 孙华
Original assignee: ZHUZHOU FULIDA CEMENTED CARBIDE Co Ltd
Current assignee: ZHUZHOU FULIDA CEMENTED CARBIDE Co Ltd
Priority date: 2014-07-08
Filing date: 2014-07-08
Publication date: 2014-11-12

Abstract

The invention discloses a cobalt-base alloy material. The cobalt-base alloy material is prepared from the following raw materials in percentage by mass: 40-70% of Co, 20-30% of Cr, 1-10% of Ni, 0.5-10% of Mo, 1-20% of W, 1-5% of Fe, 0.2-0.5% of Mn, 0.5-4% of Si and 0.4-2% of C. The invention also provides a manufacturing method of the cobalt-base alloy material. The method comprises the following steps: preparing an alloy material with corresponding content according to the weight percentages of chemical components of the alloy; performing ball-milling on the alloy material to obtain powder; then adding a forming agent; stirring and cooling; crushing an obtained material into particles; injecting to obtain a product green blank by virtue of an injection molding machine; putting the green blank into a vacuum degumming integrated furnace, and sintering to obtain a product. The cobalt-base alloy material disclosed by the invention is easy to process, has more excellent wear resistance and corrosion resistance than those of stainless steel, and can be widely applied to the field of clocks and watches and jewelries.

Description

A kind of Co-base alloy material and manufacture method thereof

Technical field

The present invention relates to nonferrous materials and preparation forming field thereof, relate in particular to a kind of Co-base alloy material and manufacture method thereof.

Background technology

Platinum (Platinum is called for short Pt), is a kind of natural pure white white precious metal, is described as the king of precious metal.Platinum is that the rarest in the world jewelry gold belongs to.Only the few places such as South Africa and Russia is produced platinum in the world, and its global store content is only a thirtieth of gold.Tons of ores, through 150 multiple working procedures, the several months consuming time, the platinum extracting only can be made the simple ring of one piece of number grammes per square metre, so be badly in need of a kind of material of similar platinum, is applied to clock and watch jewelry field.

The manufacture method of Co-base alloy material is mainly that the mode of casting by high temperature is poured into a mould product at present, can only pour into a mould the extremely low product of simple shape, dimensional requirement, after casting complete, by post-production pattern, obtain qualified product, technique is very complicated, has increased production cost and tooling cost.

Summary of the invention

The technical issues that need to address of the present invention are to provide a kind of Co-base alloy material and manufacture method thereof of the similar platinum for clock and watch jewelry industry.For addressing the above problem, the technical scheme that the present invention takes is that a kind of Co-base alloy material, is characterized in that, by the raw material by following mass percent, is made: Co, 40%-70%; Cr, 20%-30%; Ni, 1%-10%; Mo, 0.5%-10%; W, 1%-20%, Fe, 1%-5%; Mn, 0.2%-0.5%; Si, 0.5%-4%; C, 0.4%-2%;

Preferably, by the raw material by following mass percent, be made: Co, 45.5%; Cr, 26;

Ni,2%;Mo,1%;W,17%,Fe,3.5%;?Mn,?0.5%;?Si,?2.5%;?C,1%；

A manufacture method for Co-base alloy material, comprises the following steps:

1) by the weight percent of described alloy composition, be ready to Co, Cr, Ni, Mo, W, Fe, Mn, Si and the C of corresponding content;

2) Co, Cr, Ni, Mo, W, Fe, Mn, Si and C are put into in high energy ball mill, ball milling is after 6 hours, drying is sieved and is made 300 order powder;

3) by step 2) gained material adds forming agent by making injection molding requirement, carries out after stirring 60 minutes cooling under 100 ℃ of conditions;

4) the cooling rear gained material of step 3) is broken into 60 order particles, through injector, is injected into product green compact;

5) step 4) products obtained therefrom green compact are put into the vacuum all-in-one oven that comes unstuck and are carried out sintering, before 600 ℃, complete and come unstuck, under 1300 ℃ of conditions, be incubated two hours after furnace cooling, in furnace temperature, take out product during lower than 100 ℃;

Preferably, described forming agent is paraffin.

beneficial effect

The invention provides a kind of Co-base alloy material of unprecedented similar platinum color gloss, the similar stainless steel of its processing characteristics, wear-resisting and corrosion resistance nature is better than stainless steel, it is a kind of imitative platinum material of top grade, clock and watch bullion field can be widely used in, by manufacture method provided by the invention, the product of any complicated shape can be manufactured, and size can arbitrarily control to micron level, greatly reduces production cost and tooling cost.

Specific embodiments

Co-base alloy material is made by the raw material by following mass percent: a Co, 45.5%; Cr, 26; Ni, 2%; Mo, 1%; W, 17%, Fe, 3.5%; Mn, 0.5%; Si, 2.5%; C, 1%;

A manufacture method for Co-base alloy material, comprises the following steps:

3) by step 2) gained material adds wax moulding agent by making injection molding requirement, carries out after stirring 60 minutes cooling under 100 ℃ of conditions;

The present invention has been carried out to exemplary description above; obvious realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technical scheme to carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all in protection scope of the present invention.

The above is only better embodiment of the present invention, and the equivalence of doing according to the feature described in patent claim of the present invention and principle therefore all changes or modifies, and is included in patent claim of the present invention.

Claims

1. a Co-base alloy material, is characterized in that, by the raw material by following mass percent, is made: Co, 40%-70%; Cr, 20%-30%; Ni, 1%-10%; Mo, 0.5%-10%; W, 1%-20%, Fe, 1%-5%; Mn, 0.2%-0.5%; Si, 0.5%-4%; C, 0.4%-2%.

2. a kind of Co-base alloy material according to claim 1, is characterized in that, by the raw material by following mass percent, is made: Co, 45.5%; Cr, 26; Ni, 2%; Mo, 1%; W, 17%, Fe, 3.5%; Mn, 0.5%; Si, 2.5%; C, 1%.

3. a manufacture method for Co-base alloy material, is characterized in that, it comprises the following steps:

5) step 4) products obtained therefrom green compact are put into the vacuum all-in-one oven that comes unstuck and are carried out sintering, before 600 ℃, complete and come unstuck, under 1300 ℃ of conditions, be incubated two hours after furnace cooling, in furnace temperature, take out product during lower than 100 ℃.

4. the manufacture method of a kind of Co-base alloy material according to claim 3, is characterized in that, described forming agent is paraffin.