CN106216696A - A kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment - Google Patents
A kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment Download PDFInfo
- Publication number
- CN106216696A CN106216696A CN201610797527.0A CN201610797527A CN106216696A CN 106216696 A CN106216696 A CN 106216696A CN 201610797527 A CN201610797527 A CN 201610797527A CN 106216696 A CN106216696 A CN 106216696A
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- CN
- China
- Prior art keywords
- copper base
- diamond
- composite materials
- matrix composite
- titaniferous
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- 239000010432 diamond Substances 0.000 title claims abstract description 77
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 77
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 37
- 239000010949 copper Substances 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 239000011159 matrix material Substances 0.000 title claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 239000000956 alloy Substances 0.000 claims description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 13
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 claims description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 15
- 238000001764 infiltration Methods 0.000 abstract description 9
- 230000008595 infiltration Effects 0.000 abstract description 9
- 238000000889 atomisation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000005204 segregation Methods 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010406 interfacial reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000006263 metalation reaction Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention discloses belong to technical field of composite preparation a kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment.The pipelining equipment of preparing of this composite is prepared streamline by vacuum melting furnace, ball mill, three-dimensional material mixer, hydrogen sintering furnace, crusberscreen according to what preparation technology flow process arranged in series became copper base diamond matrix composite materials.The titaniferous copper base diamond carcass composite wood that pipelining equipment prepared by this titaniferous copper base diamond matrix composite materials produces improves diamond matrix material and diamond interface infiltration and bonding, the each element powders loose specific weight difference overcoming mixing method is bigger, composition is uneven, easily produce goods composition segregation, the shortcoming affecting instrument quality stability, for the steady quality of diamond tool bit；Relatively ti coated diamond technology, low cost, cutter head sintering temperature is low；Relative to atomization, low cost, powder is colded pressing function admirable, it is adaptable to diamond tool bit is colded pressing production technology.
Description
Technical field
The invention belongs to technical field of composite preparation, particularly to a kind of titaniferous copper base diamond matrix composite materials
Prepare pipelining equipment.The specifically preparation facilities of a kind of copper base diamond matrix composite materials containing element ti, stannum etc.,
The composite powder of preparation, for the preparation of diamond segment, can improve diamond matrix material and infiltrate with diamond interface and viscous
Knot, improves the combination property of diamond tool.
Background technology
In recent years, China's diamond and diamond tool industry have had the development of leap, from several quantum leaps and start
Lifting in quality.For improving service life and the performance of diamond tool, the emphasis of diamond industry research and crucial skill
Art is how to strengthen alloy carcass material to make a concerted effort the metallurgical junction of diamond, improves the diamond matrix wellability to diamond.
The seventies, studied and found to the addition of appropriate strong carbide shape in the low melting point brazing alloy such as copper, silver last century
Becoming element, after Ti, Cr etc., this alloy has had significant improvement to the wellability of diamond, and its infiltration angle all can be less than 45
Degree, when alloying component allotment is suitable, its infiltration angle even can reach 0 degree, and this alloy can realize welding diamond metallurgy
Connect.Its mechanism is: when with the addition of appropriate carbide (Ti, Cr) after copper, silver alloy, under brazing temperature,
In solution, Ti, Cr element preferentially produces interfacial reaction with the diamond surface being made up of carbon atom, generates corresponding carbide
(TiC、Cr2C3) be securely attached on diamond surface, alloy solution by generating infiltration and the welding of carbide to interface
(bonding) and realize the infiltration of diamond and welding (bonding).It turned out the formation element of conventional ten kind strong carbide
Ti, Zr, Cr, V, Ta, Nb, Ha, W, Mo, Si, all have similar interfacial reaction to generate carbide, all in various degree to diamond
On improve brazed copper, silver alloy to diamond infiltration and welding (bonding).
This welding mechanism is applied to diamond tool: dimaond die, diamond segment and impregnated type diamond
On tool production manufactures, owing to achieving the metallurgical weld to diamond (bonding), strengthen alloy substrate (carcass) to diamond
Inlay and cohesive force, significantly improve the life-span of diamond tool.
Make a general survey of domestic and international carbide to the research in terms of diamond adhesion and application, mainly include " gold
Hard rock surface metalation and coating technology ", " improving diamond matrix material and diamond interface infiltration and bonding technology ".
" diamond surface metallization and coating technology " commonly used vacuum micro-steaming method in diamond particle surfaces titanizing,
Making to define metal carbides coating structure between diamond and coating, coating there occurs with diamond and is bonded, and at surface layer
For pure metallic titanium, titanizing layer and diamond adhesion are more than 140MPa, and this structure makes diamond disengaging rate reduce, height of protrusion
Increase, and avoid objectionable impurities to affect diamond properties.But this titanizing technology requires height, impact to the equipment of manufacture and raw material
Quality unstable factor is many, and mature technology rests in one or two institute and school, and cost is high；And Titanium and carcass material
The combined process temperature drift of material.
" improving diamond matrix material and diamond interface infiltration and bonding technology " is to set diamond matrix material
Meter, improves the diamond interface after sintering and the wellability of carcass material.Main method has: carbide and main body
Material mixing method, atomization.Mixing method processing technology is simple, but there is problems in that each element powders loose specific weight differs relatively
Greatly, composition is uneven, easily produces goods composition segregation, affects instrument quality stability.Atomization produce carcass powder by
Comprise the various metallic elements of component alloy in each powder particle, composition uniformity is fairly good.Due to atomized powder congruent melting
Point is much lower compared with single element fusing point in alloy, and therefore sintering temperature is low.Therefore the pre-alloyed powder that atomization produces is at Buddha's warrior attendant
Lapicide has in carcass material and is applied.Owing to containing carbide, such as: Ti, Cr etc., belonging to active metal, adopting
Producing with in water atomization air, loss is very big, such as: copper 80% stannum 13% titanium 7% alloyed powder uses water atomization to produce, metal loss
Rate 10-20%, considers from Social and economic benef@, is all uneconomic.It addition, the alloyed powder containing carbide can
To use the atomization of vacuum argon to produce, but powder is spherical in shape or subsphaeroidal, and loose specific weight is big, compressing very poor, especially
The diamond tool bit getting up latest developments production technology of colding pressing cannot use.
Summary of the invention
It is an object of the invention to provide a kind of titaniferous copper base diamond matrix composite materials prepares pipelining equipment, and it is special
Levy and be, this composite prepare pipelining equipment by vacuum melting furnace, ball mill, three-dimensional material mixer, hydrogen sintering furnace, broken
Broken screening machine prepares streamline according to what preparation technology flow process arranged in series became copper base diamond matrix composite materials.
The streamline of preparing of described titaniferous copper base diamond matrix composite materials arranges electrolytic copper plate in vacuum melting stokehold
Proportioner with pure titanium material；Copper titanium composite intermediate alloy is set at vacuum melting furnace rear and preserves container；
Described ball mill configuration argon bottle, is prepared as ultra-fine copper titanium alloy powder for ball mill ball mill by intermediate alloy
Time argon shield.
Described three-dimensional material mixer is for by the copper powder of certain specification, ultra-fine copper Titanium Powder, ultra-fine glass putty mix homogeneously.
Described hydrogen sintering furnace is by the powder sintered one-tenth alloy of mix homogeneously.
Described crusberscreen is made up of disintegrating machine and screen cloth；First the alloy breaks down sintered into is become powder body, then carry out
Screening；Obtain the titaniferous copper base diamond carcass powder body material of different grain size scope.
The invention have the benefit that the copper base diamond carcass containing carbide Ti prepared by the present invention is multiple
Close dusty material and can improve diamond matrix material and diamond interface infiltration and bonding, overcome each element powder of mixing method
End loose specific weight difference is relatively big, and composition is uneven, easily generation goods composition segregation, the shortcoming affecting instrument quality stability,
Steady quality for diamond tool bit；Relatively ti coated diamond technology, low cost, cutter head sintering temperature is low；Relatively
In atomization, low cost, powder colds pressing function admirable, is particularly suited for the diamond tool bit of latest development and colds pressing production work
Skill.
Accompanying drawing explanation
Fig. 1 is that the pipelining equipment of preparing of composite forms schematic diagram；
1-Titanium board and electrolytic copper plate proportioner in figure；2-vacuum melting furnace；3-copper titanium intermediate alloy preserves container；4-
Ball mill；5-ultra-fine copper Titanium Powder；6-copper powder, ultra-fine glass putty dispensing；7-three-dimensional material mixer；The powder of 8-mix homogeneously；9-
Hydrogen sintering furnace；10-titaniferous acid bronze alloy；11-crusberscreen；The copper base diamond carcass powder body material of 12-titaniferous.
Detailed description of the invention
It is an object of the invention to provide a kind of titaniferous copper base diamond matrix composite materials prepares pipelining equipment, and this is multiple
Condensation material prepare pipelining equipment by vacuum melting furnace, ball mill, three-dimensional material mixer, hydrogen sintering furnace, crusberscreen by
Streamline is prepared according to what preparation technology flow process arranged in series became titaniferous copper base diamond matrix composite materials.Give below in conjunction with the accompanying drawings
With explanation.
Fig. 1 show the pipelining equipment of preparing of composite and forms schematic diagram；Described titaniferous copper base diamond carcass is multiple
The streamline of preparing of condensation material arranges electrolytic copper plate and the proportioner 1 of pure titanium material before vacuum melting furnace 2；In vacuum melting
Furnace rear arranges copper titanium composite intermediate alloy and preserves container 3, for depositing the electrolytic copper plate according to dispensing by a certain percentage and pure titanium
The copper titanium composite intermediate alloy that plate is smelted into by vacuum melting furnace 2；Ball mill 4 configures argon bottle, in ball mill ball mill 4 is incited somebody to action
Between alloy be prepared as during ultra-fine copper Titanium Powder 5 carrying out argon shield；Three-dimensional material mixer 7 is by the ultra-fine copper titanium alloy of certain specification
Powder 5, copper powder and ultra-fine glass putty 6 mix homogeneously, the powder 8 of mix homogeneously enters hydrogen sintering furnace 9 and sinters titaniferous acid bronze alloy into
10；Thereafter enter and constituted crusberscreen 11 by disintegrating machine and screen cloth, first titaniferous acid bronze alloy is broken into powder body, then carry out
Screening；Obtain the titaniferous copper base diamond carcass powder body material 12 of different grain size scope, prepare copper base diamond carcass and be combined
Material.
Claims (6)
1. the pipelining equipment that prepared by a titaniferous copper base diamond matrix composite materials, it is characterised in that this composite
Prepare pipelining equipment by vacuum melting furnace, ball mill, three-dimensional material mixer, hydrogen sintering furnace, crusberscreen according to preparation work
What process flow arranged in series became titaniferous copper base diamond matrix composite materials prepares streamline.
Pipelining equipment prepared by a kind of titaniferous copper base diamond matrix composite materials, its feature
Being, the streamline of preparing of described copper base diamond matrix composite materials arranges electrolytic copper plate and pure titanium material in vacuum melting stokehold
The proportioner of material；Copper titanium composite intermediate alloy is set at vacuum melting furnace rear and preserves container.
Pipelining equipment prepared by a kind of titaniferous copper base diamond matrix composite materials, its feature
Being, described ball mill configuration argon bottle, when intermediate alloy is prepared as ultra-fine copper titanium alloy powder by ball mill ball mill
Argon shield.
Pipelining equipment prepared by a kind of titaniferous copper base diamond matrix composite materials, its feature
Being, described three-dimensional material mixer is for by the copper powder of certain specification, ultra-fine copper Titanium Powder, ultra-fine glass putty mix homogeneously.
Pipelining equipment prepared by a kind of titaniferous copper base diamond matrix composite materials, its feature
Being, described hydrogen sintering furnace is by the powder sintered one-tenth alloy of mix homogeneously.
Pipelining equipment prepared by a kind of titaniferous copper base diamond matrix composite materials, its feature
Being, described crusberscreen is made up of disintegrating machine and screen cloth；First the alloy breaks down sintered into is become powder body, then sieve
Point；Obtain the titaniferous copper base diamond carcass powder body material of different grain size scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797527.0A CN106216696A (en) | 2016-08-31 | 2016-08-31 | A kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797527.0A CN106216696A (en) | 2016-08-31 | 2016-08-31 | A kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106216696A true CN106216696A (en) | 2016-12-14 |
Family
ID=58074631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610797527.0A Pending CN106216696A (en) | 2016-08-31 | 2016-08-31 | A kind of titaniferous copper base diamond matrix composite materials prepare pipelining equipment |
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| CN (1) | CN106216696A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274003A (en) * | 2017-12-26 | 2018-07-13 | 南京悠谷新材料科技有限公司 | A kind of preparation method of copper titanium composite material |
| CN112756614A (en) * | 2020-12-31 | 2021-05-07 | 苏州赛尔科技有限公司 | Grinding wheel for processing hard brittle sapphire glass and preparation method thereof |
| CN114574721A (en) * | 2022-03-01 | 2022-06-03 | 秦皇岛江龙吸气材料有限公司 | Multi-element non-evaporable low-temp activated getter and its preparing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732304A (en) * | 1980-07-31 | 1982-02-22 | Showa Denko Kk | Production of glass grinding sheet |
| CN101748302A (en) * | 2008-12-08 | 2010-06-23 | 安泰科技股份有限公司 | Pre-alloying powder for diamond tool and manufacturing method thereof |
| KR101352020B1 (en) * | 2011-08-19 | 2014-01-16 | 이화다이아몬드공업 주식회사 | Manufacturing method for diamond tool |
| CN103898344A (en) * | 2012-12-24 | 2014-07-02 | 北京有色金属研究总院 | Preparation method of copper based diamond matrix composite material |
| CN104057095A (en) * | 2014-06-25 | 2014-09-24 | 北京科技大学 | Production line for low-oxygen-content hard alloy mixture and production technology thereof |
-
2016
- 2016-08-31 CN CN201610797527.0A patent/CN106216696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732304A (en) * | 1980-07-31 | 1982-02-22 | Showa Denko Kk | Production of glass grinding sheet |
| CN101748302A (en) * | 2008-12-08 | 2010-06-23 | 安泰科技股份有限公司 | Pre-alloying powder for diamond tool and manufacturing method thereof |
| KR101352020B1 (en) * | 2011-08-19 | 2014-01-16 | 이화다이아몬드공업 주식회사 | Manufacturing method for diamond tool |
| CN103898344A (en) * | 2012-12-24 | 2014-07-02 | 北京有色金属研究总院 | Preparation method of copper based diamond matrix composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274003A (en) * | 2017-12-26 | 2018-07-13 | 南京悠谷新材料科技有限公司 | A kind of preparation method of copper titanium composite material |
| CN112756614A (en) * | 2020-12-31 | 2021-05-07 | 苏州赛尔科技有限公司 | Grinding wheel for processing hard brittle sapphire glass and preparation method thereof |
| CN114574721A (en) * | 2022-03-01 | 2022-06-03 | 秦皇岛江龙吸气材料有限公司 | Multi-element non-evaporable low-temp activated getter and its preparing process |
| CN114574721B (en) * | 2022-03-01 | 2022-12-13 | 秦皇岛江龙吸气材料有限公司 | Multi-element non-evaporable low-temp activated getter and its preparing process |
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Application publication date: 20161214 |