阅读说明：本技术 一种用于生产深腔焊劈刀的材料及其制备工艺 (A kind of material and its preparation process welding chopper for producing deep chamber ) 是由 杨强 于 2019-09-05 设计创作，主要内容包括：一种用于生产深腔焊劈刀的材料,包括以下重量配比的原料：5.3％～7.3％钴,0.4％～0.5％铬,0.05％～0.1％铁,0.01％～0.02％铌,0.01％～0.02％镍,0.01％～0.02％钽,0.01％～0.02％钛,0.01％～0.02％钒,其余为碳化钨,以上各组份之合为100％。本发明的材料硬度适宜、晶粒大小合理,极好的解决了国内深腔焊劈刀缺少合适的材料而主要靠进口的现状,解决了超声传输效率、使用寿命、加工工艺兼容性问题。本发明还提供了一种用于生产深腔焊劈刀的材料的制备工艺。(A kind of material welding chopper for producing deep chamber, raw material including following weight proportion: 5.3%~7.3% cobalt, 0.4%~0.5% chromium, 0.05%~0.1% iron, 0.01%~0.02% niobium, 0.01%~0.02% nickel, 0.01%~0.02% tantalum, 0.01%~0.02% titanium, 0.01%~0.02% vanadium, remaining is tungsten carbide, and the above each component is combined into 100%.Material hardness of the invention is suitable for, grain size is reasonable, and fabulous solve domestic deep chamber weldering chopper and lack suitable material and the status mainly by import, solves ultrasound-transmissive efficiency, service life, processing technology compatibility issue.The present invention also provides a kind of for producing the preparation process of the material of deep chamber weldering chopper.)

1. a kind of for producing the material of deep chamber weldering chopper, which is characterized in that the raw material including following weight proportion: 5.3%~ 7.3% cobalt, 0.4%~0.5% chromium, 0.05%~0.1% iron, 0.01%~0.02% niobium, 0.01%~0.02% nickel, 0.01%~0.02% tantalum, 0.01%~0.02% titanium, 0.01%~0.02% vanadium, remaining is tungsten carbide, the above each component it It is combined into 100%.

2. according to claim 1 for producing the material of deep chamber weldering chopper, which is characterized in that including following weight proportion Raw material: 6.3% cobalt, 0.46% chromium, 0.08% iron, 0.02% niobium, 0.02% nickel, 0.02% tantalum, 0.02% titanium, 0.02% Vanadium, remaining is tungsten carbide, and the above each component is combined into 100%.

3. according to claim 1 for producing the material of deep chamber weldering chopper, which is characterized in that the grain size of the material It is 0.1 μm~1.5 μm.

4. a kind of as described in any one of claims 1-3 for producing the preparation process of the material of deep chamber weldering chopper, feature It is, includes the following steps:

A, the dusty material of cobalt, chromium, iron, niobium, nickel, tantalum, titanium, vanadium and tungsten carbide is chosen according to the ratio；

B, the dusty material in step a is sent into mold and is pressed into embryo material；

C, embryo material is sent into sintering furnace and is sintered；

D, in sintering furnace successively to embryo material solid-phase sintering, liquid-phase sintering after cooling finished product.

5. according to claim 4 for producing the preparation process of the material of deep chamber weldering chopper, which is characterized in that in step In d, the temperature of solid-phase sintering is 1350 DEG C~1450 DEG C, and the temperature of liquid-phase sintering is 1485 DEG C.

6. according to claim 4 for producing the preparation process of the material of deep chamber weldering chopper, which is characterized in that in step In dusty material in a, it is also necessary to grain growth inhibitor be added, which includes at least vanadium carbide, carbonization One of molybdenum, chromium carbide, niobium carbide, tantalum carbide, titanium carbide, zirconium/hafnium carbide, make 0.1 μm of grain size in finished product~ 1.5μm。

Technical field

The present invention relates to chopper production technical field, especially a kind of material and its preparation for producing deep chamber weldering chopper Technique.

Background technique

Currently, domestic deep chamber weldering chopper mainly based on import, causes one of main cause of this status just It is material development lag, lacks the material prescription for being really suitble to the domestic deep chamber weldering chopper of production, external mature deep chamber welds chopper Main material is tungsten alloy, but tungsten alloy is a huge material system, and the country still lacks capable of really passing through for independent research The Fundamentals of Welding of deep chamber weldering, emphasis solve ultrasound-transmissive efficiency, service life, processing technology compatibility issue and have good material The material that chopper is welded for producing deep chamber of material characteristic.

Summary of the invention

To solve problems of the prior art, the material that the present invention provides a kind of for producing deep chamber weldering chopper and Its preparation process, which is suitable for, grain size is reasonable, and the fabulous domestic deep chamber weldering chopper that solves lacks suitable material Expect solve ultrasound-transmissive efficiency, service life, processing technology compatibility issue mainly by the status of import.

The technical solution adopted by the present invention is that:

A kind of material welding chopper for producing deep chamber, the raw material including following weight proportion: 5.3%~7.3% cobalt (Co), 0.4%~0.5% chromium (Cr), 0.05%~0.1% iron (Fe), 0.01%~0.02% niobium (Nb), 0.01%~ 0.02% nickel (Ni), 0.01%~0.02% tantalum (Ta), 0.01%~0.02% titanium (Ti), 0.01%~0.02% vanadium (V), Remaining is tungsten carbide (WC), and the above each component is combined into 100%.

Preferably, the raw material including following weight proportion: 6.3% cobalt, 0.46% chromium, 0.08% iron, 0.02% niobium, 0.02% nickel, 0.02% tantalum, 0.02% titanium, 0.02% vanadium, remaining is tungsten carbide, and the above each component is combined into 100%.

Preferably, the grain size of the material is 0.1 μm~1.5 μm.

It is a kind of as described above for producing the preparation process of the material of deep chamber weldering chopper, include the following steps:

A, the dusty material of cobalt, chromium, iron, niobium, nickel, tantalum, titanium, vanadium and tungsten carbide is chosen according to the ratio；

B, the dusty material in step a is sent into mold and is pressed into embryo material；

C, embryo material is sent into sintering furnace and is sintered；

D, in sintering furnace successively to embryo material solid-phase sintering, liquid-phase sintering after cooling finished product.

Preferably, in step d, the temperature of solid-phase sintering is 1350 DEG C~1450 DEG C, and the temperature of liquid-phase sintering is 1485 ℃。

Preferably, in the dusty material in step a, it is also necessary to grain growth inhibitor be added, the Coarse Grain Agent includes at least vanadium carbide (VC), molybdenum carbide (Mo₂C), chromium carbide (Cr₃C₂), niobium carbide (NbC), tantalum carbide (TaC), titanium carbide (TiC), one of zirconium (Zr)/hafnium carbide (HfC) makes 0.1 μm~1.5 μm of grain size in finished product.

The beneficial effects of the present invention are:

1, the life problems of chopper are solved, hardness, intensity and the toughness of material of the invention are all suitable for having chopper Good service life；

2, the compatibility issue in chopper subsequent machining technology is solved, material of the invention is in tungsten alloy and mature The standard material trade mark is compared, and is not that hardness is highest, but hardness is suitable, is allowed for simultaneous in subsequent processing technology Capacitive；

3, it solves ultrasound-transmissive efficiency, is transferred for the ultrasonic energy that deep chamber welds the ultrasonic welding of chopper and provide guarantor Barrier.

Specific embodiment

Of the invention is described in detail below with reference to embodiment.