CN104128605B - Rare earth modified tungstenio binder diamond saw blade and manufacture method thereof - Google Patents
Rare earth modified tungstenio binder diamond saw blade and manufacture method thereof Download PDFInfo
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- CN104128605B CN104128605B CN201410355311.XA CN201410355311A CN104128605B CN 104128605 B CN104128605 B CN 104128605B CN 201410355311 A CN201410355311 A CN 201410355311A CN 104128605 B CN104128605 B CN 104128605B
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Abstract
The invention discloses a kind of rare earth modified tungstenio binder diamond saw blade and manufacture method thereof, diamond dust and rare earth modified tungstenio bonding agent being sufficiently mixed, this rare earth modified tungstenio bonding agent comprises 40��75 parts of tungsten, 2��6 parts of nickel, ferrum 2��5 parts, 8��30 parts of stannum, copper 7��20 parts, 0.4��1 part of manganese, 0.1��1 part of rare earth element; After said mixture cold moudling, at 900��960 DEG C, carry out vacuum heating-press sintering under 140��200KN 25��35 minutes; Subsequently at 840��900 DEG C, carry out HIP sintering under 80��120MPa 5��10 minutes, obtain diamond circular saw blade cutter head; Diamond circular saw blade cutter head is installed on circular saw blade substrate, obtains diamond disc. The present invention can significantly improve the hold of diamond particles, increases the wearability of diamond disc, thus improving processing characteristics and the service life of diamond disc.
Description
Technical field
The present invention relates to a kind of rare earth modified tungstenio binder diamond saw blade and manufacture method thereof.
Background technology
Diamond disc is widely used in the cutting processing of the hard brittle materials such as concrete, refractory material, stone material, pottery. Conventional diamond circular saw blade cutter head carcass includes iron-based and cobalt-based. Iron-based matrix has higher mechanical property, and diamond also has good wettability, and with low cost, but its self-sharpening is not good enough; And cobalt-based carcass has good formability and sinterability, the wettability of diamond is good, cohesive force is big, good toughness, and self-sharpening might as well, it it is the most widely used a kind of carcass in diamond tool field, but the diamond on cobalt-based carcass holds by mechanical system, causes that diamond particles can not effectively cut completely in exposure, but also can make its severe attrition because of the effect of pulling capacity, make diamond particles obscission serious, affect grinding efficiency and the service life of diamond disc. In the metallic bond manufacturing carcass, add a small amount of tungsten powder sometimes, this is because tungsten is except producing solid molten strengthening with other metals, or carbide, can react with diamond and produce enhanced primary treatment power, compared with simply mechanically diamond being wrapped up with general metallic bond and being fitted together to, the generation of enhanced primary treatment power is conducive to improving carcass to the power that plates of diamond, enhancing hold, it is therefore contemplated that tungstenio binder diamond saw blade will have the performance of excellence. But the fusing point of tungsten is up to 3940 DEG C, it is sintered, as metallic bond, the ability that required temperature is born considerably beyond diamond using tungsten, it is easily caused the graphitization of diamond particles, what therefore all adopt at present mostly is the relatively low tungsten carbide-base bonding agent of sintering temperature, and simple tungsten based anchoring agent have not been reported. But tungsten carbide-base bonding agent wolfram element on the one hand itself has formed carbide, and its effect producing enhanced primary treatment power with diamond is weakened;On the other hand the sintering temperature needed for tungsten carbide-base bonding agent is still higher, be only suitable for the good diamond of heat resistance with the use of, relatively costly, range of application is narrow. Therefore, if the problem that tungsten based anchoring agent sintering temperature is high can be solved, it will the manufacturing technology for diamond disc opens the gate that a fan is new.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art part, it is provided that a kind of rare earth modified tungstenio binder diamond saw blade and manufacture method thereof.
One of the technical solution adopted for the present invention to solve the technical problems is:
A kind of rare earth modified tungstenio binder diamond saw blade manufacture method, including:
1) diamond dust and rare earth modified tungstenio bonding agent being sufficiently mixed, this rare earth modified tungstenio bonding agent comprises following components by mass fraction: 40��75 parts of tungsten, 2��6 parts of nickel, ferrum 2��5 parts, 8��30 parts of stannum, copper 7��20 parts, 0.4��1 part of manganese, 0.1��1 part of rare earth element;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 900��960 DEG C, sintering pressure 140��200KN, sintering time 25��35 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 840��900 DEG C, sintering pressure 80��120MPa, sintering time 5��10 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is installed on circular saw blade substrate, obtains diamond disc.
In one embodiment: described diamond dust is artificial monocrystalline diamond powder, and its diamond concentration is 50%��100%, and granularity is 35/40��170/200.
In one embodiment: described rare earth element is at least one in the compound of lanthanum or lanthanum.
In one embodiment: the compound of described lanthanum is at least one in lanthana, lanthanum sulfate, Lanthanum (III) nitrate, lanthanum chloride.
In one embodiment: described step 4) in, diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc.
In one embodiment: described step 4) in, by diamond circular saw blade cutter head hot pressed sintering on circular saw blade substrate, obtain diamond disc.
The two of the technical solution adopted for the present invention to solve the technical problems are:
A kind of rare earth modified tungstenio binder diamond saw blade manufactured according to rare earth modified tungstenio binder diamond saw blade manufacture method.
Diamond concentration of the present invention is industry slang, refers to the quality of diamond in unit volume metallic bond, with 4.4 carats/centimetre3For diamond concentration 100%.
Carcass of the present invention is industry slang, refers to the metal sinter of trapping gold hard rock, plays the effect holding diamond, as the working portion in diamond tool, for instance cutter head, working lining etc.
Heretofore described artificial single crystal's diamond dust is product sold in the market.
Heretofore described tungsten, nickel, ferrum, stannum, copper, manganese are elemental metals powder, are product sold in the market.
Heretofore described lanthanum, lanthana, lanthanum sulfate, Lanthanum (III) nitrate, lanthanum chloride are product sold in the market.
The technical program is compared with background technology, and it has the advantage that
1. rare earth modified tungstenio bonding agent provided by the present invention, each component complements each other, sintering temperature is reduced to, from nearly 4,000 degrees Celsius, the scope that diamond can bear, solve tungstenio bonding agent all the time and be difficult to the defect of practical application because sintering temperature is high, it is successfully realized the manufacture of tungstenio binder diamond saw blade, and utilize tungsten and diamond to react the enhanced primary treatment power produced, improve diamond particles hold on diamond disc carcass, the diamond disc hardness obtained is high, cutting force is strong, wear-resistant, the new situation has been started in manufacture for high-performance diamond saw blade.
2. the present invention adds rare earth element in tungstenio bonding agent, there is the effect controlling melts combine grain growth, and have employed the compound of rare earth element in the preferred embodiment, grain size controllability is better, the metallic bond crystal grain obtained will not be excessive or too small, particle diameter is more stable, enhance hardness and the toughness of diamond disc, also improve anti-wear performance and impact resistance, effect is better than rare earth element simple substance, it is further provided the new approaches of high-performance diamond saw blade manufacture method.
Detailed description of the invention
Illustrate present disclosure by the examples below:
Embodiment 1
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 75%, nickel 5%, ferrum 4%, stannum 8%, copper 7%, manganese 0.5%, lanthana 0.5%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 40/50 is sufficiently mixed by diamond concentration 75% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 950 DEG C, sintering pressure 150KN, sintering time 30 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 850 DEG C, sintering pressure 90MPa, sintering time 7 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 2
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 70%, nickel 5%, ferrum 4%, stannum 11%, copper 9%, manganese 0.5%, lanthana 0.5%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 40/50 is sufficiently mixed by diamond concentration 75% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 950 DEG C, sintering pressure 150KN, sintering time 30 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 850 DEG C, sintering pressure 90MPa, sintering time 7 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 3
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 60%, nickel 5%, ferrum 4%, stannum 17%, copper 13%, manganese 0.5%, lanthana 0.5%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 40/50 is sufficiently mixed by diamond concentration 75% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 950 DEG C, sintering pressure 150KN, sintering time 30 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 850 DEG C, sintering pressure 90MPa, sintering time 7 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 4
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 55%, nickel 5%, ferrum 4%, stannum 20%, copper 15%, manganese 0.5%, lanthana 0.5%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 40/50 is sufficiently mixed by diamond concentration 75% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 950 DEG C, sintering pressure 150KN, sintering time 30 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 850 DEG C, sintering pressure 90MPa, sintering time 7 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 5
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 40%, nickel 5%, ferrum 4%, stannum 30%, copper 20%, manganese 0.5%, lanthana 0.5%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 40/50 is sufficiently mixed by diamond concentration 75% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 950 DEG C, sintering pressure 150KN, sintering time 30 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 850 DEG C, sintering pressure 90MPa, sintering time 7 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 6
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 65%, nickel 2%, ferrum 5%, stannum 15%, copper 10%, manganese 0.7%, lanthanum chloride 0.1%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 170/200 is sufficiently mixed by diamond concentration 50% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 930 DEG C, sintering pressure 150KN, sintering time 25 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 900 DEG C, sintering pressure 120MPa, sintering time 5 minutes, obtain diamond circular saw blade cutter head;
4) by diamond circular saw blade cutter head at 930 DEG C, when pressure 150KN, hot pressed sintering is on circular saw blade substrate, obtains diamond disc.Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
Embodiment 7
1) rare earth modified tungstenio bonding agent is prepared: in this rare earth modified tungstenio bonding agent gross mass, comprising following components: tungsten 50%, nickel 4%, ferrum 2%, stannum 25%, copper 18%, manganese 1%, lanthanum sulfate 1%, said components utilizes high-energy ball milling grind uniformly and get final product after being sufficiently mixed; Artificial single crystal's diamond dust that granularity is 35/40 is sufficiently mixed by diamond concentration 100% and above-mentioned rare earth modified tungstenio bonding agent;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 900 DEG C, sintering pressure 200KN, sintering time 35 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 870 DEG C, sintering pressure 100MPa, sintering time 10 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc. Adopting water weight method to detect the consistency of this diamond disc, after tested, its consistency reaches more than 95%.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, and the equivalence namely made according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (7)
1. a rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterised in that: including:
1) diamond dust and rare earth modified tungstenio bonding agent being sufficiently mixed and obtain mixture, this rare earth modified tungstenio bonding agent comprises following components by mass fraction: 40��75 parts of tungsten, 2��6 parts of nickel, ferrum 2��5 parts, 8��30 parts of stannum, copper 7��20 parts, 0.4��1 part of manganese, 0.1��1 part of rare earth element;
2) corresponding mould is utilized after said mixture cold moudling, vacuum heating-press sintering, sintering temperature 900��960 DEG C, sintering pressure 140��200KN, sintering time 25��35 minutes will to be carried out by the profile of required diamond circular saw blade cutter head;
3), after vacuum heating-press sintering, carry out HIP sintering, sintering temperature 840��900 DEG C, sintering pressure 80��120MPa, sintering time 5��10 minutes, obtain diamond circular saw blade cutter head;
4) diamond circular saw blade cutter head is installed on circular saw blade substrate, obtains diamond disc.
2. one according to claim 1 rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterized in that: described diamond dust is artificial monocrystalline diamond powder, and its diamond concentration is 50%��100%, granularity is 35/40��170/200.
3. one according to claim 1 rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterised in that: at least one in the compound that addition form is lanthanum or lanthanum of described rare earth element.
4. one according to claim 3 rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterised in that: the compound of described lanthanum is at least one in lanthana, lanthanum sulfate, Lanthanum (III) nitrate, lanthanum chloride.
5. one according to claim 1 rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterised in that: described step 4) in, diamond circular saw blade cutter head is welded on circular saw blade substrate, obtains diamond disc.
6. one according to claim 1 rare earth modified tungstenio binder diamond saw blade manufacture method, it is characterized in that: described step 4) in, by diamond circular saw blade cutter head at 900��960 DEG C, when 140��200KN, hot pressed sintering is on circular saw blade substrate, obtains diamond disc.
7. the rare earth modified tungstenio binder diamond saw blade that an a kind of rare earth modified tungstenio binder diamond saw blade manufacture method according to claim 1 manufactures.
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| CN105458244A (en) * | 2015-11-30 | 2016-04-06 | 苏州市宝玛数控设备有限公司 | High-strength diamond cutting disk and preparing method thereof |
| CN105908104B (en) * | 2016-05-10 | 2017-07-14 | 广州市华司特合金制品有限公司 | A kind of tungsten alloy barricade and preparation method thereof |
| CN107962182B (en) * | 2017-10-31 | 2020-01-31 | 昆明理工大学 | method for preparing diamond circular saw blade cutter head by microwave hot pressing sintering technology |
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| JPH03277735A (en) * | 1990-03-27 | 1991-12-09 | Hitachi Metals Ltd | Manufacture of cermet |
| CN1287576A (en) * | 1998-10-16 | 2001-03-14 | 欧罗钨粉公司 | Metal powders based on tungsten and/or molybdenum and three-dimension metals |
| CN1657257A (en) * | 2004-02-17 | 2005-08-24 | 河南黄河旋风股份有限公司 | Diamond saw bit and its manufacturing method |
| CN101195258B (en) * | 2007-12-29 | 2011-03-09 | 叶根培 | Granite cutting slice and production method thereof |
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