CN103468995A - TiC-Ni-Mo cemented carbide material for abrasion-resisting plate and manufacturing method for TiC-Ni-Mo cemented carbide material - Google Patents
TiC-Ni-Mo cemented carbide material for abrasion-resisting plate and manufacturing method for TiC-Ni-Mo cemented carbide material Download PDFInfo
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Abstract
The invention relates to a TiC-Ni-Mo cemented carbide material and a manufacturing method for an abrasion-resisting plate (a glasses plate), an S pipe valve and an abrasion-resisting ring of a concrete pump. The TiC-Ni-Mo cemented carbide material comprises titanium carbide, nickel powder, molybdenum powder, WC, TaC and rare earth. The TiC-Ni-Mo cemented carbide material is acquired through the processes of powder grinding through a wet ball method, granulating through glue mixing, compression forming, sintering and the like. The TiC-Ni-Mo cemented carbide material is specifically used for manufacturing the abrasion-resisting plate (the glasses plate), the S pipe valve and the abrasion-resisting ring of the concrete pump. Titanium carbide serves as a hard phase, nickel and molybdenum serve as binding phases, and appropriate microelement, carbon powder and other adjusting materials are added to synthesize the physical properties. Due to the fact that the TiC is adopted to serve as the hard phase, the TiC-Ni-Mo cemented carbide material is high in hardness and low in density. Compared with tungsten carbide iron content cemented carbide, the TiC-Ni-Mo cemented carbide material has the advantages of being good in abrasion-resisting property, low in density, corrosion resistant, high in performance cost ratio, long in service life and the like.
Description
Technical field
The present invention relates to TiC-Ni-Mo Hardmetal materials and making method for a kind of wearing plate; TiC-Ni-Mo Hardmetal materials and the making method for wearing plate (cheater plate), S pipe valve and wear ring that particularly relate to a kind of concrete pump.
Background technology
Be applied to concrete pump with the high-abrasive material of wearing plate, require to have shock-resistant, wear-resistant, high strength, good physicals and the mechanical property such as corrosion-resistant.The material used in the market is mainly the WC-Fe-Ni-Co series hard alloy.
The WC-Fe-Ni-Co series hard alloy, it is hard phase that this series hard alloy adopts WC, WC is a kind of expensive metallic carbide on the one hand, price is substantially 300,000 yuan/tons of left and right, 3 times of TiC price, so also just make WC series hard alloy price high all the time, and then cause the wearing plate price higher all the time; On the other hand, WC has the advantages that density is high, and in the WC-Fe-Ni-Co series hard alloy, Fe content is higher simultaneously, because the Fe erosion resistance is poor, has affected the work-ing life of wearing plate.Therefore existing WC-Fe-Ni-Co series hard alloy material can not meet transferpump wearing plate (cheater plate), S pipe valve and the wear ring technical requirements of building manufacturing.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and defect, provide that a kind of density is low, wear resistance good, TiC-Ni-Mo Hardmetal materials and making method for the wearing plate of long service life; This TiC-Ni-Mo Hardmetal materials is specifically designed to makes Wear-resisting plate for concrete conveying pump (cheater plate), S pipe valve and wear ring, thereby greatly improves wear resistance and work-ing life.
The objective of the invention is to realize by following technical proposal: a kind of making method of wearing plate TiC-Ni-Mo Hardmetal materials is characterized in that described TiC-Ni-Mo Hardmetal materials completes by weight proportion batching and the step of following raw material:
The weight proportion of described each raw material (% by weight) is:
Titanium carbide 55%～60%, nickel powder 28%～36%,
Molybdenum powder 8%～9%, WC 0.6% ~ 1.6%,
TaC 0.6% ~ 1.6%, rare earth 0.6% ~ 1.6%;
Any value between above-mentioned each component two-end-point; Each component percentage composition sum is 100%; The carbon point of joining of above-mentioned raw materials compound is 10.26%～11.45%;
The Chemical Composition of above-mentioned titanium carbide, nickel powder and three kinds of raw materials of molybdenum powder is as follows:
Titanium carbide: TiC% > 99%, C% > 19%, O%<0.5%, Fsss :≤2.0 μ m;
Nickel powder: Ni+ Co >=99.5%, Co≤0.10%, Fsss :≤2.0 μ m;
Molybdenum powder: Mo >=99.8%, Fsss :≤2.0 μ m;
Described each step is:
(1), wet ball grinding powder process, the raw material of above-mentioned weight proportion is dropped in ball mill to selected raw material: mill ball: raw spirit=1:7.5:0.45; Wherein, the mill ball diameter is 5.0～8.0mm, and Ball-milling Time is 72 hours, then with 80 eye mesh screens, removes broken ball and dirty compound; Carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, carries out sieving of 200 eye mesh screens after alcohol is fully removed, and obtains the compound powder;
(2), mixing glue granulates, above-mentioned compound powder is placed in to spiral stirrer with forming agent fully to be mixed, carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, after petrolic solvent in forming agent is fully evaporated, carry out the 40-60 purpose and wipe the sieve series grain, obtain meet the compression moulding requirement mix the glue compound;
Described forming agent is divided into rubber-moulding agent or wax moulding agent: the rubber-moulding agent is that gasoline dissolving cis-1,4-polybutadiene rubber is made, and concentration is 10% ~ 12%, and ash content is less than 0.03%; The wax moulding agent is that gasoline dissolving paraffin is made, and concentration is 18% ~ 28%, and ash content is less than 0.03%; The agent of employing rubber-moulding, is mixed by 90ml/kg ~ 95 ml/kg weight proportions with above-mentioned compound powder when spiral stirrer is mixed; Or adopt the wax moulding agent with above-mentioned compound powder when spiral stirrer is mixed, by 85ml/kg ~ 90 ml/kg weight proportions, mixed;
(3), compression moulding, the above-mentioned glue compound of mixing is loaded in forming mould and is placed on compression moulding in pressing machine, forming press adopts fluid pressure type or mechanical press, specific mo(u)lding pressure is controlled at 1.1 ~ 1.4 tons/cm
2;
(4), sintering: sintering process is divided into forming agent and removes and two stages of sintering: whole sintering process, it is 5 ~ 8 ℃/minute that heat-up rate is controlled; It is 280 ℃ ~ 580 ℃ that forming agent removes phase temperature, is 280 ℃, 450 ℃ and 580 ℃ three sections in temperature and is incubated, and each section soaking time is not wait in 60 ~ 120 minutes, according to the product size is different, determines; The sintering stage, forming agent continues to heat up after removing three sections insulations, being 800 ℃, 1100 ℃ and 1350 ℃ three sections in temperature is incubated again, be that each section soaking time is not wait in 30 ~ 90 minutes, determine according to the product size is different, afterwards, being warmed up to sintering temperature is 1380 ℃ ~ 1400 ℃, soaking time is 40 ~ 60 minutes, according to the product size is different, determines, and whole sintering phases-time is 7 ~ 12 hours; Obtain HRA>84, the Hardmetal materials of bending strength>2400MPa; The TiC-Ni-Mo Hardmetal materials obtained by aforesaid method is to be specifically designed to make Wear-resisting plate for concrete conveying pump (cheater plate), S pipe valve and wear ring.
It is hard phase that the present invention adopts titanium carbide, and nickel and molybdenum are Binder Phase, adds appropriate trace element and carbon dust etc. simultaneously and regulates material comprehensive physical performance; Titanium carbide is the refractory carbide with high rigidity, high-melting-point, wear-resistant characteristics, and titanium carbide is the ideal material of making Wimet.Binder Phase adopts nickel and the molybdenum of certain proportioning, adds molybdenum in nickel, forms Mo while making the material sintering
2c, and form unbalanced TiC-Mo on TiC crystal grain
2c sosoloid, obtain a kind of ring structure crystal grain.This crystal grain shell molybdenum content is high, titanium content is low, inner molybdenum or the high titanium of low molybdenum of lacking.Due to metallic nickel to TiC-Mo
2the wettability of C phase is better, has avoided nickel directly to contact with TiC, thereby makes alloy have desirable density and physicals preferably.Adding of the trace elements such as WC, TaC or rare earth, and the control of joining carbon point, can obviously put forward heavy alloyed bending strength and wear resistance.
The material used on existing market is mainly the WC-Fe-Ni-Co series hard alloy; And the density of WC is 3 times of TiC density, WC-Fe-Ni-Co series hard alloy density is 2 times of TiC-Ni-Mo material Wimet density of the present invention, therefore, make a same wearing plate, using TiC-Ni-Mo material Wimet material therefor of the present invention is to use 50% of WC-Fe-Ni-Co series hard alloy material therefor, thereby saved lot of materials, economical effectiveness is fairly obvious.Same inch, in the WC-Fe-Ni-Co series hard alloy, Fe content is higher, because the Fe erosion resistance is poor, has affected the work-ing life of wearing plate.And the present invention only has Ni, be metal simple-substance, other are stable carbide, and the Ni metal itself is exactly the corrosion resistant material of high-quality, so TiC-Ni-Mo material Wimet erosion resistance of the present invention is very outstanding.
TiC-Ni-Mo material Wimet of the present invention has more excellent hardness and wear resistance than WC-Fe-Ni-Co series hard alloy, because the present invention adopts TiC as hard phase, WC is higher for its hardness ratio, secondly, the Ni-Mo Binder Phase is also excellent a lot of on intensity and wear resistance than Fe-Ni-Co Binder Phase, thereby product of the present invention is had the longer life-span under identical environment for use.
In sum, TiC-Ni-Mo Hardmetal materials of the present invention is a kind of Wimet that titanium carbide is hard phase that adopts, and with tungsten carbide-base iron content Wimet, compares, and this material has that wear resistance is good, density is low, corrosion-resistant, cost performance advantages of higher.
Embodiment
The making method of TiC-Ni-Mo Hardmetal materials for a kind of wearing plate,
It is characterized in that described TiC-Ni-Mo Hardmetal materials completes by weight proportion batching and the step of following raw material:
The weight proportion of described each raw material (% by weight) is:
Titanium carbide 55%～60%, nickel powder 28%～36%,
Molybdenum powder 8%～9%, WC 0.6% ~ 1.6%,
TaC 0.6% ~ 1.6%, rare earth 0.6% ~ 1.6%;
Any value between above-mentioned each component two-end-point; Each component percentage composition sum is 100%; The carbon point of joining of above-mentioned raw materials compound is 10.26%～11.45%;
The Chemical Composition of above-mentioned titanium carbide, nickel powder and three kinds of raw materials of molybdenum powder is as follows:
Titanium carbide: TaC% > 99%, C% > 19%, O%<0.5%, Fsss :≤2.0 μ m;
Nickel powder: Ni+ Co >=99.5%, Co≤0.10%, Fsss :≤2.0 μ m;
Molybdenum powder: Mo >=99.8%, Fsss :≤2.0 μ m;
Described each step is:
(1), wet ball grinding powder process, the raw material of above-mentioned weight proportion is dropped in ball mill to selected raw material: mill ball: raw spirit=1:7.5:0.45; Wherein, the mill ball diameter is 5.0～8.0mm, and Ball-milling Time is 72 hours, then with 80 eye mesh screens, removes broken ball and dirty compound; Carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, carries out sieving of 200 eye mesh screens after alcohol is fully removed, and obtains the compound powder;
(2), mixing glue granulates, above-mentioned compound powder is placed in to spiral stirrer with forming agent fully to be mixed, carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, after petrolic solvent in forming agent is fully evaporated, carry out the 40-60 purpose and wipe the sieve series grain, obtain meet the compression moulding requirement mix the glue compound;
Described forming agent is divided into rubber-moulding agent or wax moulding agent: the rubber-moulding agent is that gasoline dissolving cis-1,4-polybutadiene rubber is made, and concentration is 10% ~ 12%, and ash content is less than 0.03%; The wax moulding agent is that gasoline dissolving paraffin is made, and concentration is 18% ~ 28%, and ash content is less than 0.03%;
The agent of employing rubber-moulding, is mixed by 90ml/kg ~ 95 ml/kg weight proportions with above-mentioned compound powder when spiral stirrer is mixed;
Or adopt the wax moulding agent with above-mentioned compound powder when spiral stirrer is mixed, by 85ml/kg ~ 90 ml/kg weight proportions, mixed;
(3), compression moulding, the above-mentioned glue compound of mixing is loaded in forming mould and is placed on compression moulding in pressing machine, forming press adopts fluid pressure type or mechanical press, specific mo(u)lding pressure is controlled at 1.1 ~ 1.4 tons/cm
2;
(4), sintering, sintering process is divided into forming agent and removes and two stages of sintering: whole sintering process, it is 5 ~ 8 ℃/minute that heat-up rate is controlled; It is 280 ℃ ~ 580 ℃ that forming agent removes phase temperature, is 280 ℃, 450 ℃ and 580 ℃ three sections in temperature and is incubated, and each section soaking time is not wait in 60 ~ 120 minutes, according to the product size is different, determines; The sintering stage, forming agent continues to heat up after removing three sections insulations, being 800 ℃, 1100 ℃ and 1350 ℃ three sections in temperature is incubated again, be that each section soaking time is not wait in 30 ~ 90 minutes, determine according to the product size is different, afterwards, being warmed up to sintering temperature is 1380 ℃ ~ 1400 ℃, soaking time is 40 ~ 60 minutes, according to the product size is different, determines, and whole sintering phases-time is 7 ~ 12 hours; Obtain HRA>84, the Hardmetal materials of bending strength>2400MPa.
The TiC-Ni-Mo Hardmetal materials obtained by aforesaid method, it is to be specifically designed to make Wear-resisting plate for concrete conveying pump (cheater plate), S pipe valve and wear ring.
TiC-Ni-Mo Hardmetal materials of the present invention is a kind of Wimet that titanium carbide is hard phase that adopts, and with tungsten carbide-base iron content Wimet, compares, and this material has that wear resistance is good, density is low, corrosion-resistant, cost performance advantages of higher.
Formulation examples
Example 1, titanium carbide 57.4%, nickel powder 32.4%, molybdenum powder 8.1%, WC 0.7%, and TaC 0.7%, rare earth 0.7%;
Example 2, titanium carbide 55%, nickel powder 33.8%, molybdenum powder 8.45%, WC 0.916 %, TaC 0.916 %, rare earth 0.916%;
Example 3, titanium carbide 56.5%, nickel powder 32.4%, molybdenum powder 8.1%, WC 1%, and TaC 1%, rare earth 1%;
Example 4, titanium carbide 55.2%, nickel powder 32.%, molybdenum powder 8%, WC 1.6%, and TaC 1.6%, rare earth 1.6%;
Example 5, titanium carbide 59%, nickel powder 29.%, molybdenum powder 9%, WC 1.%, and TaC 1.%, rare earth 1.%.
Claims (2)
1. the making method of TiC-Ni-Mo Hardmetal materials for a wearing plate,
It is characterized in that described TiC-Ni-Mo Hardmetal materials completes by weight proportion batching and the step of following raw material:
The weight proportion of described each raw material (% by weight) is:
Titanium carbide 55%～60%, nickel powder 28%～36%,
Molybdenum powder 8%～9%, WC 0.6% ~ 1.6%,
TaC 0.6% ~ 1.6%, rare earth 0.6% ~ 1.6%;
Each component percentage composition sum is 100%;
The carbon point of joining of above-mentioned raw materials compound is 10.26%～11.45%;
Described each step is:
(1), wet ball grinding powder process, the raw material of above-mentioned weight proportion is dropped in ball mill to selected raw material: mill ball: raw spirit=1:7.5:0.45; Wherein, the mill ball diameter is 5.0～8.0mm, and Ball-milling Time is 72 hours, then with 80 eye mesh screens, removes broken ball and dirty compound; Carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, carries out sieving of 200 eye mesh screens after alcohol is fully removed, and obtains the compound powder;
(2), mixing glue granulates, above-mentioned compound powder is placed in to spiral stirrer with forming agent fully to be mixed, carry out afterwards drying in the steam drying cabinet, temperature is controlled at below 100 ℃, after petrolic solvent in forming agent is fully evaporated, carry out the 40-60 purpose and wipe the sieve series grain, obtain meet the compression moulding requirement mix the glue compound;
Described forming agent is divided into rubber-moulding agent or wax moulding agent: the rubber-moulding agent is that gasoline dissolving cis-1,4-polybutadiene rubber is made, and concentration is 10% ~ 12%, and ash content is less than 0.03%; The wax moulding agent is that gasoline dissolving paraffin is made, and concentration is 18% ~ 28%, and ash content is less than 0.03%;
The agent of employing rubber-moulding, is mixed by 90ml/kg ~ 95 ml/kg weight proportions with above-mentioned compound powder when spiral stirrer is mixed;
Or adopt the wax moulding agent with above-mentioned compound powder when spiral stirrer is mixed, by 85ml/kg ~ 90 ml/kg weight proportions, mixed;
(3), compression moulding, the above-mentioned glue compound of mixing is loaded in forming mould and is placed on compression moulding in pressing machine, forming press adopts fluid pressure type or mechanical press, specific mo(u)lding pressure is controlled at 1.1 ~ 1.4 tons/cm
2;
(4), sintering: sintering process is divided into forming agent and removes and two stages of sintering:
Whole sintering process, it is 5 ~ 8 ℃/minute that heat-up rate is controlled;
It is 280 ℃ ~ 580 ℃ that forming agent removes phase temperature, is 280 ℃, 450 ℃ and 580 ℃ three sections in temperature and is incubated, and each section soaking time is not wait in 60 ~ 120 minutes, according to the product size is different, determines;
The sintering stage, forming agent continues to heat up after removing three sections insulations, being 800 ℃, 1100 ℃ and 1350 ℃ three sections in temperature is incubated again, be that each section soaking time is not wait in 30 ~ 90 minutes, determine according to the product size is different, afterwards, being warmed up to sintering temperature is 1380 ℃ ~ 1400 ℃, soaking time is 40 ~ 60 minutes, according to the product size is different, determines, and whole sintering phases-time is 7 ~ 12 hours; Obtain HRA>84, the Hardmetal materials of bending strength>2400MPa.
2. a kind of wearing plate TiC-Ni-Mo Hardmetal materials that the method for claim 1 is made.
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Cited By (10)
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|---|---|---|---|---|
| CN105274415A (en) * | 2015-10-10 | 2016-01-27 | 西安交通大学 | Manufacturing method for porous titanium carbide ceramics |
| CN106011699A (en) * | 2016-06-27 | 2016-10-12 | 山东建筑大学 | Preparing method of high-strength tungsten-based alloy toughened by titanium carbide and silicon carbide crystal whiskers |
| CN107236890A (en) * | 2017-05-27 | 2017-10-10 | 陈国生 | A kind of concrete pump truck cheater plate and cut ring new material and preparation method thereof |
| CN109355542A (en) * | 2018-11-13 | 2019-02-19 | 武汉新科冶金设备制造有限公司 | Blast furnace opening drill bit ceramet bit material and preparation method thereof |
| CN109365823A (en) * | 2018-10-25 | 2019-02-22 | 上海材料研究所 | A kind of whole hard alloy hobboing cutter and its manufacturing process |
| CN109513935A (en) * | 2018-11-20 | 2019-03-26 | 河源粤奥硬质合金有限公司 | A kind of titanium-base alloy cutter material and preparation method thereof |
| CN109648077A (en) * | 2019-01-28 | 2019-04-19 | 自贡兆强密封制品实业有限公司 | It is a kind of to use (Ti, Cr, Nb) (Cx,N1-x) solid solution production cermet and preparation method thereof |
| CN110669976A (en) * | 2019-11-13 | 2020-01-10 | 徐州工业职业技术学院 | Ceramic metal material and preparation method thereof |
| CN115109978A (en) * | 2022-07-11 | 2022-09-27 | 叶惠明 | Wear-resistant hard alloy material for impact drilling and preparation method thereof |
| CN115467821A (en) * | 2022-10-09 | 2022-12-13 | 西迪技术股份有限公司 | Distribution valve and glasses plate and cutting ring thereof |
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| CN107236890A (en) * | 2017-05-27 | 2017-10-10 | 陈国生 | A kind of concrete pump truck cheater plate and cut ring new material and preparation method thereof |
| CN109365823A (en) * | 2018-10-25 | 2019-02-22 | 上海材料研究所 | A kind of whole hard alloy hobboing cutter and its manufacturing process |
| CN109355542A (en) * | 2018-11-13 | 2019-02-19 | 武汉新科冶金设备制造有限公司 | Blast furnace opening drill bit ceramet bit material and preparation method thereof |
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| CN109648077A (en) * | 2019-01-28 | 2019-04-19 | 自贡兆强密封制品实业有限公司 | It is a kind of to use (Ti, Cr, Nb) (Cx,N1-x) solid solution production cermet and preparation method thereof |
| CN110669976A (en) * | 2019-11-13 | 2020-01-10 | 徐州工业职业技术学院 | Ceramic metal material and preparation method thereof |
| CN110669976B (en) * | 2019-11-13 | 2020-11-17 | 徐州工业职业技术学院 | Ceramic metal material and preparation method thereof |
| CN115109978A (en) * | 2022-07-11 | 2022-09-27 | 叶惠明 | Wear-resistant hard alloy material for impact drilling and preparation method thereof |
| CN115467821A (en) * | 2022-10-09 | 2022-12-13 | 西迪技术股份有限公司 | Distribution valve and glasses plate and cutting ring thereof |
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