CN104745907B - A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block - Google Patents
A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block Download PDFInfo
- Publication number
- CN104745907B CN104745907B CN201310734441.XA CN201310734441A CN104745907B CN 104745907 B CN104745907 B CN 104745907B CN 201310734441 A CN201310734441 A CN 201310734441A CN 104745907 B CN104745907 B CN 104745907B
- Authority
- CN
- China
- Prior art keywords
- powder
- block
- sintering
- high density
- tungsten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses tungsten alloy formula and its low-temperature melt producing method that a kind of high density flies block.Formula includes following component, and the mass percent of each component is：W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：3‑5：3‑5：0.5‑1.5：0‑1：1, wherein thick W powder accounts for 60%, thin W powder accounts for 40%.Wherein optimal proportion is 90W 4Ni 4Mn 0.5Cu 0.5Co 1Sn.Its preparation method is 1120 DEG C of sintering 2h in hydrogen atmosphere.The advantage that patent of the present invention is contrasted with other patents of invention：The forming property that can improve powder is engaged using varigrained tungsten powder and various alloying elements, various alloying elements also help activated sintering, wherein 1% Sn powder can be by 200 DEG C or so of sintering temperature reduction.Influence of the different ratio to heavy alloy performance using orthogonal design method system research, the high performance-price ratio proportioning for being drawn is reliable comprehensively, with representing meaning.Generally speaking, the winged block that prepared by the formula and preparation method has sintering temperature low, and densified sintering product is good, the advantages of oeverall quality is high.
Description
Technical field
Closed the present invention relates to a kind of tungsten Penetrator formula, especially the W-Ni-Mn systems in tungsten Penetrator
Gold formula, more properly say be a kind of high density fly block tungsten alloy formula and its low-temperature melt producing method.Belong to tungsten conjunction
Golden material and preparing technical field.
Background technology
Tungsten Penetrator (Tungsten Heavy Alloys, WHAs) is also referred to as " heavy alloy " or " tungsten
Heavy Alloys ", it be one kind with tungsten as hard phase, with nickel, copper or nickel, iron etc. to cohere the composite for mutually being constituted.Tungsten base is high
A series of excellent specific properties such as density alloy has that density is high, intensity is high, ductility good, good toughness, thermal coefficient of expansion are small, it is extensive
Apply in fields such as information, the energy, metallurgy, Aero-Space, defence and military and nuclear industry.
Winged block is a vital part in engineering machinery engine dispensing pump speed setting controller.Operationally, four fly
Block is rotated at a high speed by winged block band action simultaneously, and block opening angle difference is flown under different rotating speeds, changes the position of fuel-flow control bar
Put, so that adjusting oil mass is controlling engine speed, it is ensured that Diesel engine：（1）Minimum speed of the stabilization in idle,
Engine is set not stop working.（2）The maximum speed of diesel engine is limited, driving is prevented.Winged block be in engine one it is of crucial importance
Part.
From the point of view of the working condition of winged block, winged block should have density high and consistent quality, and mechanical property high is again
There is dimensional accuracy and low surface roughness high, just can ensure that oil pump still to the normal work of whole engine.Due to flying block
Complex-shaped, technical requirements are high, for a long time dependence on import always.
The main component of tungsten Penetrator is tungsten, must additionally add some binder metals, to play liquid phase burning
The effect of knot.Binder metal according to addition is classified, and can be divided into W-Ni-Fe heavy alloys, W-Ni-Cu heavy alloys,
W-Ni-Co heavy alloys and W-Ni-Mn heavy alloys etc..
For W-Ni-Fe systems heavy alloy, as ω (Ni)/ω (Fe)=7/3, the temperature for forming liquid phase is minimum, is
1435℃；For W-Ni-Co systems heavy alloy, when the content of Co is 0, the temperature for forming liquid phase is minimum, now liquid phase life
1455 DEG C of the fusing point of Ni is into temperature, with the increase of Co contents, liquid phase generation temperature is improved；It is highly dense for W-Ni-Cu systems
Degree alloy, its Ni-Cu binary is complete solid solution system, and as ω (Ni)/ω (Cu)=4/6, liquid phase generation temperature is at least 1250
More than DEG C；And for W-Ni-Mn systems heavy alloy, as ω (Ni)/ω (Mn)=4/6, Ni is combined to form with Mn and is cohered phase
The fusing point of liquid phase generation is about 1014 DEG C, and compared with Ni-Fe, Ni-Co, Ni-Cu are as cohering, its liquid phase generation temperature drops significantly
It is low.
It is conventional with tungsten as base, Ni, Fe, Cu etc. are high to cohere the sintering temperature of the tungsten Penetrator of phase, to sintering
The requirement of stove is high, and infringement to sintering furnace is serious, so as to shorten its service life.And Mn is combined to form with Ni and is cohered phase
The fusing point of liquid phase generation is about 1040 DEG C, can not only reduce the damage to sintering furnace, can also largely save
Sintering cost.
The mainly iron-base powder metallurgical product that winged block is produced at present, because the density of iron only has 7.86g/cm3, its powder
The density of the winged block of metallurgy is no more than the density of iron.Thus the winged block density of the iron-based of production is not high, it is impossible to fully meets winged block
Highdensity requirement.And the density of tungsten is up to 19.3g/cm3, it is that the twice of iron is more, fly block with very wide for producing high density
Wealthy prospect.
At present, the application on tungsten Penetrator is much reported both at home and abroad, such as Application No.
The United States Patent (USP) of US19970874360, it was found that application of the W-Ni-Mn systems heavy alloy in terms of Adiabatic Shear Bands, also sends out
Existing W-Ni-Mn systems heavy alloy can substitute current iron-base powder metallurgical product.But with the highly dense of this composition acquisition
Application of the degree alloy primarily directed to it in terms of Adiabatic Shear Bands.Because its sintering temperature is still higher, and powder shaping
Property it is bad, be applied to complicated shape fly block still suffer from some problems.
The content of the invention
It is an object of the invention to provide a kind of tungsten Penetrator formula, the especially W- in tungsten Penetrator
Ni-Mn systems alloy formula, saying more properly is that a kind of low-temperature sintering prepares the tungsten Penetrator formula that high density flies block.
Using the formula, the winged block of high density for preparing complicated shape can be produced, the winged block of production has density big, and hardness is high, real
The advantages of border using effect is good.
Realize that technical scheme is embodied as：
A kind of high density flies the tungsten alloy formula of block, and the tungsten alloy belongs to the W-Ni-Mn systems in tungsten Penetrator,
Following component is specifically included, the mass ratio of each component is：W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：3-5：3-5：
0.5-1.5：0-1：1.
Wherein, thick W powder accounts for 60% in W powder, and thin W powder accounts for 40%, and both granularities are respectively 200 mesh and 100 mesh.
Optimal case is W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：4：4：0.5：0.5：1.
Above-specified high density flies the low-temperature melt producing method of block, prepares as follows：
The first step, reactor is added by material powder, adds abrasive media and steel ball, is mixed；
Second step, volatilize abrasive media, mixed powder is put into the mould for smearing lubricant in advance, high pressure pressure
System；
3rd step, to compacting after winged block carry out hydrogen atmosphere sintering, sintering temperature is 1100 ~ 1200 DEG C, sintering time
It is 2 ~ 3h, that is, high density is obtained and flies block.
Wherein, abrasive media selects ethanol in the first step, and ratio of grinding media to material is 3:1, incorporation time is 12 hours.
From zinc stearate and the mixed solution of alcohol, high-pressure is 200MPa to lubricant in second step.
Sintering temperature is 1120 DEG C in 3rd step, and sintering time is 2h.
Its remarkable advantage is patent of the present invention compared with prior art：
（1）The forming property that can improve powder is engaged using varigrained tungsten powder and various alloying elements, it is various
Alloying element also helps activated sintering, wherein 1% Sn powder can be by 200 DEG C or so of sintering temperature reduction.（2）Set using orthogonal
Meter method system have studied influence of the different ratio to heavy alloy performance, and the high performance-price ratio proportioning for being drawn is reliable comprehensively,
With representing meaning.（3）Generally speaking, the formula has sintering temperature low, and densified sintering product is good, and sintering flies block finished product density
Height, hardness is high, the advantages of oeverall quality is high.
Brief description of the drawings
Fig. 1 is the relative density analysis chart of the embodiment of the present invention.
Fig. 2 is the Brinell hardness analysis chart of the embodiment of the present invention.
Fig. 3 is the pictorial diagram that high density prepared by the present invention flies block.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.The present invention includes herein below, it is not limited to below
Content.
Embodiment 1
A kind of high density flies the low-temperature melt producing method of block, prepares as follows：
The first step, reactor is added by material powder, adds abrasive media ethanol and steel ball, is mixed, and ratio of grinding media to material is
3:1, incorporation time is 12 hours.
Be put into for mixed powder in the mould for smearing lubricant in advance, high pressure by second step, cold wind volatilization ethanol
200MPa is suppressed, and the lubricant is from zinc stearate and the mixed solution of alcohol；
3rd step, to compacting after winged block carry out hydrogen atmosphere sintering, sintering temperature is 1120 DEG C, and sintering time is 2h,
High density is obtained and flies block.
Above-specified high density flies the W-Ni-Mn systems that the tungsten alloy of block belongs in tungsten Penetrator, specifically includes with the following group
Part, the mass ratio of each component is：W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：3-5：3-5：0.5-1.5：0-1：1.
Wherein, thick W powder accounts for 60% in W powder, and thin W powder accounts for 40%, and both granularities are respectively 200 mesh and 100 mesh.
Optimal case is W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：4：4：0.5：0.5：1.
Table 1 gives the present invention several preferred embodiments, and the wherein quality of W is 90g, and the quality of Sn is 1g.It is all
Example is designed according to the method for Orthogonal Experiment and Design, and preparation method is as described in Example 1：
The high density of table 1 flies block result of the test
| Sequence number | Ni/g | Mn/g | Cu/g | Co/g | Relative density（%） | Hardness（HBW） |
| 1 | 2 | 5 | 0.1 | 0 | 80.88 | 236.6 |
| 2 | 2 | 4 | 1.0 | 0.5 | 86.25 | 254.6 |
| 3 | 2 | 3 | 1.5 | 1.0 | 83.44 | 237.4 |
| 4 | 3 | 5 | 1 | 1.0 | 80.19 | 234.4 |
| 5 | 3 | 4 | 1.5 | 0 | 80.13 | 239.8 |
| 6 | 3 | 3 | 0.5 | 0.5 | 86.44 | 241.8 |
| 7 | 4 | 5 | 1.5 | 0.5 | 84.25 | 243.2 |
| 8 | 4 | 4 | 0.5 | 1.0 | 87.75 | 243.2 |
| 9 | 4 | 3 | 1.0 | 0 | 88.00 | 242.8 |
Find that optimal case is W powder after quadrature analysis are carried out to above-mentioned nine kinds of preferred embodiments：Ni powder：Mn powder：Cu powder：Co
Powder：Sn powder=90：4：4：0.5：0.5：1（See Fig. 1,2）.With reference to accompanying drawing 1 and accompanying drawing 2 it can be found that flying at the optimal proportion
The performance of block is best.Fly the technological process of block according to high density above, prepared high density and flown block（See Fig. 3）, fly block relative
Density is 89.98%, and Brinell hardness is 255.4HBW, and practical effect is excellent, has applied to actual production.
Claims (4)
1. a kind of high density flies the tungsten alloy formula of block, it is characterised in that：The tungsten alloy belongs in tungsten Penetrator
W-Ni-Mn systems, specifically include following component, and the mass ratio of each component is：W powder：Ni powder：Mn powder：Cu powder：Co powder：Sn powder=90：
3-5：3-5：0.5-1.5：0-1：1, wherein, thick W powder accounts for 60% in W powder, and thin W powder accounts for 40%, and both granularities are respectively 200 mesh
With 100 mesh.
2. the tungsten alloy formula as described in claim 1, it is characterised in that：The mass ratio of each component is：W powder：Ni powder：Mn powder：
Cu powder：Co powder：Sn powder=90：4：4：0.5：0.5：1.
3. a kind of high density as claimed in claim 1 flies the low-temperature melt producing method of block, it is characterised in that make as follows
It is standby：
The first step, reactor is added by material powder, adds abrasive media and steel ball, is mixed, and abrasive media selects ethanol,
Ratio of grinding media to material is 3:1, incorporation time is 12 hours；
Second step, volatilize abrasive media, mixed powder is put into the mould for smearing lubricant in advance, high pressure compacting, profit
From zinc stearate and the mixed solution of alcohol, high-pressure is 200MPa to lubrication prescription；
3rd step, to compacting after winged block carry out hydrogen atmosphere sintering, sintering temperature is 1100~1200 DEG C, and sintering time is 2
~3h, that is, be obtained high density and fly block.
4. the preparation method as described in claim 3, it is characterised in that：Sintering temperature is 1120 DEG C, sintering time in 3rd step
It is 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734441.XA CN104745907B (en) | 2013-12-27 | 2013-12-27 | A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734441.XA CN104745907B (en) | 2013-12-27 | 2013-12-27 | A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104745907A CN104745907A (en) | 2015-07-01 |
| CN104745907B true CN104745907B (en) | 2017-06-20 |
Family
ID=53586151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310734441.XA Active CN104745907B (en) | 2013-12-27 | 2013-12-27 | A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104745907B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441764A (en) * | 2015-12-29 | 2016-03-30 | 常熟市良益金属材料有限公司 | Tungsten-based high-density alloy |
| CN106480347A (en) * | 2016-12-05 | 2017-03-08 | 郑州丽福爱生物技术有限公司 | A kind of high-strength aluminum alloy material and preparation method thereof |
| CN108796257B (en) * | 2018-06-15 | 2020-06-05 | 陕西理工大学 | Preparation method of cell structure gradient tungsten alloy material |
| CN110857150A (en) * | 2018-08-22 | 2020-03-03 | 浙江恒成硬质合金有限公司 | Balancing weight for satellite and manufacturing process thereof |
| CN110480008B (en) * | 2019-09-03 | 2021-10-15 | 北京工业大学 | Three-dimensional communicated tungsten-based composite material prepared by laser 3D printing and preparation method thereof |
| CN112458329B (en) * | 2020-11-27 | 2021-09-24 | 西安华山钨制品有限公司 | Method for preparing tungsten alloy with different components by sintering in same furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0436436A (en) * | 1990-05-31 | 1992-02-06 | Nippon Yakin Kogyo Co Ltd | High toughness tungsten sintered alloy |
| CN101670435A (en) * | 2009-10-16 | 2010-03-17 | 珠海美利信新材料技术有限公司 | Method for preparing high-toughness high-density tungsten alloy ring |
| WO2013022503A2 (en) * | 2011-04-22 | 2013-02-14 | The Regents Of The University Of California | Compositional variations of tungsten tetraboride with transition metals and light elements |
-
2013
- 2013-12-27 CN CN201310734441.XA patent/CN104745907B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0436436A (en) * | 1990-05-31 | 1992-02-06 | Nippon Yakin Kogyo Co Ltd | High toughness tungsten sintered alloy |
| CN101670435A (en) * | 2009-10-16 | 2010-03-17 | 珠海美利信新材料技术有限公司 | Method for preparing high-toughness high-density tungsten alloy ring |
| WO2013022503A2 (en) * | 2011-04-22 | 2013-02-14 | The Regents Of The University Of California | Compositional variations of tungsten tetraboride with transition metals and light elements |
Non-Patent Citations (3)
| Title |
|---|
| （"Al，Si，Sn，Zn 合金元素对W-Ni-Mn烧结致密的影响";解峰等;《稀有金属材料与工程》;20070131;第36卷(第1期);第28-31页，第28页左栏第2段，第30页右栏第2段 * |
| "90W-Ni-Mn合金的制备与性能研究";李文超等;《粉末冶金材料科学与工程》;20091031;第14卷(第5期);第347~350页，第348页左栏第1段 * |
| "合金元素及第二相对钨的影响";王玉金等;《宇航材料工艺》;19981231(第5期);第11-18页，第14页右栏第1段，第15页左栏第2段 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104745907A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104745907B (en) | A kind of high density flies the tungsten alloy formula and its low-temperature melt producing method of block | |
| CN102568738B (en) | Manufacturing method of high-mechanical-strength sintered neodymium iron boron permanent magnets | |
| CN101809180B (en) | Metallurgical powder composition and method of production | |
| CN103611925B (en) | The powder metallurgy prescription of all-hydraulic steering gear stator-rotator pair and manufacturing process | |
| CN104388722A (en) | Hard alloy with binding phase intensified by virtue of heat treatment and preparation method of hard alloy | |
| CN108026800B (en) | Sintered valve seat | |
| CN104213030B (en) | A kind of injection forming alloy powder and the application in automobile gearbox sliding sleeve thereof | |
| CN105829560A (en) | A method for producing a sintered component and a sintered component | |
| CN104762499A (en) | Manufacturing method of fine-grain high-hardness tungsten cobalt nickel alloy | |
| US10619229B2 (en) | Manufacturing method of wear-resistant iron-based sintered alloy and wear-resistant iron-based sintered alloy | |
| CN108149126B (en) | A kind of cobalt-based composite material and preparation method that wear-resisting rotation axis carbide enhances | |
| CN105586535A (en) | Non-cobalt alloy material powder metallurgy valve seat and preparation method and application thereof | |
| CN103741048B (en) | A kind of piston of gasoline engine packing and preparation method thereof | |
| CN107663615B (en) | A kind of high self-lubricating ferrous alloy of high intensity and preparation method and application | |
| JP6315241B2 (en) | Wear-resistant copper-based sintered alloy | |
| CN105132799A (en) | Powder metallurgy material for unilateral bearing and preparing method of powder metallurgy material | |
| JPH076026B2 (en) | Manufacturing method of ferrous sintered alloy members with excellent wear resistance | |
| CN102766795B (en) | Without magnetic moulding stock and preparation method thereof | |
| JP5079417B2 (en) | Manufacturing method of high temperature corrosion resistant wear resistant sintered parts | |
| CN101068641B (en) | Sintered alloys for cam lobes and other high wear articles | |
| CN102560241A (en) | Powder metallurgy material | |
| Huang et al. | Effects of erucylamide and EBS composite lubricant on the properties of Fe based powder and green compact | |
| JP2009035786A (en) | Method for manufacturing sintered parts having corrosion resistance and abrasion resistance at high temperature | |
| CN110760734A (en) | High-density, high-wear-resistance and high-corrosion-resistance stainless steel material and production method thereof | |
| JP2012251245A (en) | Method for manufacturing sintered parts having corrosion resistance and abrasion resistance at high temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |