SE457779B - METALLIC, COPPER-BASED BINDING FOR FIREPLACES FOR WORKING LAYER WITH SILIPER - Google Patents
METALLIC, COPPER-BASED BINDING FOR FIREPLACES FOR WORKING LAYER WITH SILIPERInfo
- Publication number
- SE457779B SE457779B SE8702408A SE8702408A SE457779B SE 457779 B SE457779 B SE 457779B SE 8702408 A SE8702408 A SE 8702408A SE 8702408 A SE8702408 A SE 8702408A SE 457779 B SE457779 B SE 457779B
- Authority
- SE
- Sweden
- Prior art keywords
- working layer
- metallic
- binder
- copper
- weight
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
- B24D3/10—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for porous or cellular structure, e.g. for use with diamonds as abrasives
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
15 20 25 30 35 457 779 sådan sammansättning, som gör det möjligt att öka slitbestän- digheten hos det medelst bindemedlet framställda arbetsskiktet på s1ipverktY9. när dessa drives med hög slipbearbetningskapa- citet. 15 20 25 30 35 457 779 such a composition which makes it possible to increase the wear resistance of the working layer produced by the adhesive on grinding tool Y9. when these are operated with high grinding processing capacity.
Detta syfte uppnås enligt föreliggande uppfinning medelst ett metalliskt. kopparbaserat bindemedel för framställning av ett arbetsskikt på slipverktyg, vilket bindemedel innehåller tenn, kobolt och titanhydrid. varvid hindemedlet enligt föreliggande uppfinning utmärker sig av att det dessutom innehåller lantan- hexaborld. varvid dessa beståndsdelar ingar med följande hal- ter 1 viktprocent: 13-17 % tenn 2-9.9 3 kobolt 7-10 2 titanhydrid 0,01-0,09 3 lantanhexaborid resten koppar.This object is achieved according to the present invention by means of a metallic. copper-based binder for the production of a working layer on grinding tools, which binder contains tin, cobalt and titanium hydride. wherein the barrier agent of the present invention is characterized in that it additionally contains lanthanum hexaborld. these constituents having the following contents 1% by weight: 13-17% tin 2-9.9 3 cobalt 7-10 2 titanium hydride 0.01-0.09 3 lanthanum hexaboride the rest copper.
Genom att lantanhexaborid år införd i det metalliska binde- medlet enligt föreliggande uppfinning kan man framställa ett slipverktygsarhetsskikt med finkornig struktur, som förbättrar arbetsskiktets hallfasthetsegenskaper och följaktligen bl.a. ökar dess slitbestândighet. Böjhâilfasthetsgrånsen för det på det metalliska bindemedlet enligt föreliggande uppfinning baserade arbetssklktet vid en temperatur av exempelvis 400 och soo°c utgör so resp. 47 xp/amg. viixer värde ar 1,8-2,5 gånger högre än böjhâllfasthetsgrånsen för det på det kända metalliska bindemedlet baserade arbetsskiktet. Slitbeständig- heten hos det på det metalliska bindenedlet enligt föreliggan- de uppfinning baserade arbetsskïktet på en diamantsågklinga med en diameter av 320 mm uppgår - när sagklingan användes för skärning av granit vid en natningshastighet för sagklingan av 1000'mm7min. - till 25,1 m2 granit. vilket år tre gånger så högt som slitbeständigheten hos det på det kända metalliska bindemedlet baserade arhetsskiktet på en sågklinga av detta slag. Den specifika förbrukningen av konstgjorda diamanter med en kornstorlek varierande mellan 315 och 400 um är högst 1,47 karat per m2 granit. 10 15 20 25 30 35 457 779 Det metalliska bindemedlet enligt föreliggande uppfinning innehåller, såsom angivits ovan, l3-17 viktprocent tenn. När tennhalten l det metalliska bindemedlet är lägre än 13 vikt- procent blir slipverktygets arbetsskikt mer poröst, varför arbetsskiktets hällfasthet och följaktligen dess slitbestän- dighet minskar. Om tennhalten i bindemedlet är högre än 17 viktprocent, bildas spröda kemiska föreningar i avsevärda mängder, samtidigt som slipverktygets arbetsskikt framställes, vilket även minskar arbetsskiktets slitbeständighet.By introducing lanthanum hexaboride into the metallic binder according to the present invention, it is possible to produce an abrasive tool layer with a fine-grained structure, which improves the semi-strength properties of the working layer and consequently e.g. increases its wear resistance. The flexural strength limit of the working layer based on the metallic binder according to the present invention at a temperature of, for example, 400 and soo ° c is so resp. 47 xp / amg. The value is 1.8-2.5 times higher than the flexural strength limit of the working layer based on the known metallic adhesive. The wear resistance of the working layer based on the metallic binder according to the present invention on a diamond saw blade with a diameter of 320 mm amounts to - when the saw blade is used for cutting granite at a seaming speed for the saw blade of 1000 mm 7 minutes. - to 25.1 m2 granite. which is three times as high as the wear resistance of the metal layer based on the known metallic binder on a saw blade of this kind. The specific consumption of artificial diamonds with a grain size varying between 315 and 400 μm is a maximum of 1.47 carats per m2 of granite. The metallic binder of the present invention contains, as stated above, 13-17% by weight of tin. When the tin content of the metallic binder is lower than 13% by weight, the working layer of the grinding tool becomes more porous, so that the heel strength of the working layer and consequently its wear resistance decreases. If the tin content of the binder is higher than 17% by weight, brittle chemical compounds are formed in considerable quantities, at the same time as the working layer of the grinding tool is produced, which also reduces the wear resistance of the working layer.
Om kobolthalten i det metalliska bindemedlet enligt förelig- gande uppfinning är lägre än 2 viktprocent, ökar arbetsskik- tets krympning, när arbetsskiktet framställes. När kobolthal- ten är högre än 9,9 viktprocent, ökar sintringstemperaturen för bindemedlet vid framställning av slipverktygets arbets- skikt. vilket ogynnsamt inverkar på diamantkornens hâllfasthet.If the cobalt content of the metallic binder according to the present invention is less than 2% by weight, the shrinkage of the working layer increases when the working layer is produced. When the cobalt content is higher than 9.9% by weight, the sintering temperature of the binder increases during the production of the working layer of the grinding tool. which adversely affects the strength of the diamond grains.
Om titanhydridhalten 1 det metalliska bindemedlet enligt före- liggande uppfinning är lägre än 7 viktprocent, minskar-vid- häftningen för diamantkornen i slipverktygets arbetsskikt, vilket minskar arbetsskiktets slitbeständighet. När titan- hydridhalten i bindemedlet är högre än 10 viktprocent, krymper arbetsskiktet. samtidigt som sprickbildning uppträder 1 arbetsskiktet vid framställning därav.If the titanium hydride content of the metallic binder according to the present invention is less than 7% by weight, the adhesion of the diamond grains in the working layer of the grinding tool decreases, which reduces the wear resistance of the working layer. When the titanium hydride content of the binder is higher than 10% by weight, the working layer shrinks. at the same time as cracking occurs in the working layer during its production.
När lantanhexaboridhalten i det metalliska bindemedlet enligt uppfinningen är lägre än 0,01 viktprocent eller är högre än 0,09 viktprocent, uppvisar slipverktygets arbetsskikt icke den önskade_finkorniga strukturen, varför arhetsskiktets hällfast- hetsegenskaper försämras och dess slitbeständighet minskar.When the lanthanum hexaboride content of the metallic binder according to the invention is lower than 0.01% by weight or higher than 0.09% by weight, the working layer of the grinding tool does not exhibit the desired fine-grained structure, so that the strength properties of the working layer deteriorate and its wear resistance decreases.
Genom att kopparhalten i det metalliska bindemedlet enligt föreliggande uppfinning varierar inom ovannämnda gränser erhåller slipverktygets arbetsskikt, som är baserat på binde- nedlet enligt uppfinningen, önskade fysikaliska och mekaniska egenskaper.Because the copper content of the metallic binder according to the present invention varies within the above-mentioned limits, the working layer of the grinding tool, which is based on the binder according to the invention, obtains the desired physical and mechanical properties.
Det metalliska, kopparbaserade bindenedlet enligt föreliggande 10 15 20 25 457 779 4 uppfinning framställes genom att de i bindemedlet ingående beståndsdelarna blandas i pulverform 1 förutbestämda viktför- hållanden i en blandnlngsanordning.The metallic, copper-based binder according to the present invention is prepared by mixing the constituents of the binder in powder form 1 predetermined weight ratios in a mixing device.
För att arbetsskiktet på slipverktyget ifråga skall kunna framställas pa basis av det erhållna bindemedlet försättes detta med korn av slipnaterial. varvid kornen kan införas samtidigt som beståndsdelarna för framställning av bindemedlet blandas. Sllpmaterialet kan utgöras av exempelvis diamant. kubisk bornitrid. borkarbid, volframkarbid, tltankarbid eller blandningar därav. Slipmaterialet användes, i regel, 1 en längd av 5-40 vlktprocent. räknat på det metalliska binde- medlets vikt. Den erhållna blandningen av det netalllska bindemedlet och slipmaterialet behandlas därefter på inom pulvermetallurgin känt sätt, varvid den sammanpressas i en pressform vid ett tryck av 500-700 MPa, varefter de samman- pressade briketterna avlägsnas från pressformen och vakuum- sintras vid en temperatur av 870-l0O0°C under en tid av 30-60 min. Det framställda arbetsskiktet för slipverktyget kyles därefter, bearbetas mekaniskt och fästes vid hus. <- slipverktygets I nedanstående tabell 1 redovisas nâgra få sammansättningar för det netalliska bindemedlet enligt föreliggande uppfinning sant sammansättningen för det metalliska, genom det sovjet- ryska uppfinnarcertifikatet nr 985 lll kända blndenedlet. 10 15 20 25 30 35 457 ?79”“ 5 Tabel 1 1 Hetallisk Halt av beståndsdelar, viktprocent binde- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ nedels- ßantan- Blandning av _ konpo- Titan hexa- titandiborid sition Tenn Kobolt hydrid borid Koppar Järn och titanhydrid (1 ett viktför- hållande av 1:1) I 16,09 9.9 7 0,01 67 - - _ _ _ II 13 2,91 10 0,09 74 - - III 17 2 8 0,05 72,95 - - IV (enligt SU upp- finnar- certifi- kat nr 985 111) 8 27 - - 40 12 13 Pa basis av det letalliska bindenedlet enligt uppfinningen (bindeledelskonpositioner I-III) och det kända netalliska bindenedlet (komposition IV) framställdes arbetsskikt för dianantsàgklingor led en diameter av 320 mm. I detta syfte blandades vart och ett av bindemedlen med syntetiska diananter med en kornstorlek mellan 315 och 400 un, Diamanthalten.1 bindenedlet utgjorde 7.5 viktprocent, räknat på det netalliska bindenedlets vikt. De framställda blandnlngarna sannanpressa- des 1 en pressform vid ett tryck av 600 Ha. varefter de sam- nanpresšådë briketterna 1 form av segment med en längd av 40 nn, en bredd av 4 mn, en böjd av 6 nn och en radie av 160 ln avlägsnades från pressformen och sintrades 1 en vakuum- ugn vid en temperatur av 980°C under en tid av 40 min. De så framställda, segmentformade arbetssklkten kyldes, varefter de bearbetades mekaniskt och fâstades vid stålklíngornas hus.In order that the working layer of the grinding tool in question can be produced on the basis of the adhesive obtained, this is added with grains of abrasive material. wherein the grains can be introduced at the same time as the constituents for producing the binder are mixed. The silver material can be, for example, diamond. cubic boron nitride. boron carbide, tungsten carbide, tltank carbide or mixtures thereof. The abrasive material is generally used in a length of 5-40% by weight. calculated on the weight of the metallic binder. The resulting mixture of the non-metallic binder and the abrasive material is then treated in a manner known in powder metallurgy, whereby it is compressed in a mold at a pressure of 500-700 MPa, after which the compressed briquettes are removed from the mold and vacuum sintered at a temperature of -10 ° C for a period of 30-60 minutes. The prepared working layer for the grinding tool is then cooled, machined and attached to the housing. of the grinding tool Table 1 below shows a few compositions for the netallic binder according to the present invention, true to the composition of the metallic compound known from Soviet Inventor's Certificate No. 985 III. 10 15 20 25 30 35 457? 79 ”“ 5 Table 1 1 Hetallic Content of constituents, weight percentage binding- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Titanium hexane Titanium hexane titanium diboride sition Tin Cobalt hydride boride Copper Iron and titanium hydride (1 a weight ratio of 1: 1) I 16.09 9.9 7 0.01 67 - - _ _ _ II 13 2,91 10 0,09 74 - - III 17 2 8 0,05 72,95 - - IV (according to SU inventor certificate no. 985 111) 8 27 - - 40 12 13 On the basis of the lethal the binder according to the invention (connector compositions I-III) and the known netallic binder (composition IV), working layers were prepared for dianant saw blades with a diameter of 320 mm. To this end, each of the binders was mixed with synthetic dianants having a grain size between 315 and 400 microns. The diamond content.1 of the binder was 7.5% by weight, based on the weight of the netallic binder. The mixtures produced were compressed in a press mold at a pressure of 600 Ha. after which the briquettes were pressed together in the form of segments with a length of 40 nn, a width of 4 mn, a bend of 6 nn and a radius of 160 ln, were removed from the mold and sintered in a vacuum oven at a temperature of 980 ° C for a time of 40 min. The segment-shaped working steps thus produced were cooled, after which they were machined and attached to the steel blade housings.
Sågklingornas diameter utgjorde 320 mm. 10 15 20 25 30 35 457 779 6 Sâgklingorna led det vgd dessa fästa arbetsskiktet provades vid skärning av granit medelst en frâsmaskin under följande bearbetningsbetingelser. Sâgklingans natningshastighet och rotationshastighet utgjorde 1000 mm/min. resp. 20,9 mls, varvid sågklingans skârdjup per slag var 30 mm. Sâgklingan kyldes av vatten, varvid kylvattenflödet var 8-10 1/min.The diameter of the saw blades was 320 mm. 10 15 20 25 30 35 457 779 6 The saw blades led to the weight of these attached working layers were tested when cutting granite by means of a milling machine under the following machining conditions. The saw blade's wetting speed and rotational speed were 1000 mm / min. resp. 20.9 mls, the cutting depth of the saw blade per stroke being 30 mm. The saw blade was cooled by water, the cooling water flow being 8-10 1 / min.
Provningsresultaten redovisas i tabell 2.The test results are reported in Table 2.
Tabell 2 Hetalliskt Slitbeständighet hos säg- Arbetsskiktets speci- bindemedel klingans arbetsskikt, fika diamantförbruk- m2 granit ning. karat per m2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _9§§&lL _ _ _ _ _ _ _ _ I 16,1 1.47 II 20,3 1,15 III 25,1 0,94 IV (bindened-- let enligt SU-patent 985 111) 7,4 3.2 ...__..___-._.._-_.___.._._...___..____._..____._.-.__.- Såson framgår av tabell 2 är slitbeständigheten för det på det netalliska bindenedlet (kompositioner I-III) enligt förelig- gande uppfinning baserade arbetsskikt på sagklingorna 2-3 gånger högre än slitbestândigheten för arbetsskiktet fram- ställt på basis av det kända metalliska bindemedlet (komposi- tion IV), De på det netalliska bindemedlet enligt föreliggande uppfinning baserade arbetsskiktens specifika diamantförbruk- ning âr 2-3 gånger lägre än den specifika förbrukningen av det på det kända metalliska bindemedlet baserade arbetsskiktet.Table 2 Hetallic Wear resistance of saw- The working layer's special binder working layer, coffee diamond consumption- m2 granite. carat per m2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _9§§ & lL _ _ _ _ _ _ _ _ _ I 16,1 1.47 II 20,3 1,15 III 25, 1 0.94 IV (binding according to SU patent 985 111) 7.4 3.2 ...__..___-._.._-_.___.._._...___..____ ._..____._.-.__.- As shown in Table 2, the wear resistance of the working layer based on the netallic binder (compositions I-III) according to the present invention is 2-3 times higher than the wear resistance of the working layer. prepared on the basis of the known metallic binder (Composition IV). The specific diamond consumption of the working layers based on the netallic binder according to the present invention is 2-3 times lower than the specific consumption of the working layer based on the known metallic binder. .
Sågklingorna ned arbetsskiktet framställt av det netalliska bindenedlet enligt uppfinningen (kompositioner I-III) provades under ovannämnda betingelser men vid en latningshastighet för _ sâgklingan av 1250 lm/min. Provningsresultaten redovisas i tabell 3. 0 457 779 7 Tabell 3 Metalliskt Slítbeständighet hos såg- Arbetsskiktets speci- bindemedel klingans arbetsskikt, fika diamantförbruk- m2 granit ning, karat/m2 granit I 13.2 1.76 II 13 1,78 III 15 1,56 Det netaliiska bindemedlet enligt föreliggande uppfinning möjliggör framställning av ett arbetsskikt för slipverktyg, vilket uppvisar hög slitbeständighet under driftförhâllanden, vid vilka verktyget arbetar med hög verkningsgrad eller hög bearbetningskapacitet.The saw blades down the working layer made of the netallic binder according to the invention (compositions I-III) were tested under the above conditions but at a loading speed for the saw blade of 1250 lm / min. The test results are reported in Table 3. 0 457 779 7 Table 3 Metallic Abrasion resistance of saw- The working layer's special binder working layer, coffee diamond consumption- m2 granite, carat / m2 granite I 13.2 1.76 II 13 1.78 III 15 1.56 The netaliiska the adhesive according to the present invention enables the production of a working layer for grinding tools, which exhibits high wear resistance under operating conditions in which the tool operates with high efficiency or high machining capacity.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873719966 DE3719966A1 (en) | 1987-06-15 | 1987-06-15 | Metallic bond on the basis of copper for preparing the working layer (abrasive sheet) of a grinding tool |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8702408D0 SE8702408D0 (en) | 1987-06-10 |
| SE8702408L SE8702408L (en) | 1988-12-11 |
| SE457779B true SE457779B (en) | 1989-01-30 |
Family
ID=6329752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8702408A SE457779B (en) | 1987-06-15 | 1987-06-10 | METALLIC, COPPER-BASED BINDING FOR FIREPLACES FOR WORKING LAYER WITH SILIPER |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH671537A5 (en) |
| DE (1) | DE3719966A1 (en) |
| FR (1) | FR2616447B1 (en) |
| SE (1) | SE457779B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2631630B1 (en) * | 1988-05-18 | 1990-08-31 | Rhone Poulenc Chimie | RARE EARTH BASED ABRASIVES |
| AU739589B2 (en) * | 1996-08-28 | 2001-10-18 | Norton Company | Removable bond for abrasive tool |
| US6245443B1 (en) * | 1996-08-28 | 2001-06-12 | Norton Company | Removable bond for abrasive tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE387876B (en) * | 1972-11-16 | 1976-09-20 | Asea Ab | PROCEDURE FOR HOT PRESSING OF POWDER BODIES |
| SU985111A1 (en) * | 1980-12-16 | 1982-12-30 | Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Усср | Metallic binding for diamond tool |
| JPS58100641A (en) * | 1981-12-08 | 1983-06-15 | Seishi Tachibana | Fining method for cast structure |
| JPH0717975B2 (en) * | 1983-01-11 | 1995-03-01 | 郁男 岡本 | Amorphous alloy foil strip for brazing |
| JPS61119638A (en) * | 1984-11-14 | 1986-06-06 | Hitachi Cable Ltd | Electrode wire for electric discharge machining and its production |
-
1987
- 1987-06-02 CH CH208987A patent/CH671537A5/de not_active IP Right Cessation
- 1987-06-10 SE SE8702408A patent/SE457779B/en not_active IP Right Cessation
- 1987-06-12 FR FR8708227A patent/FR2616447B1/en not_active Expired
- 1987-06-15 DE DE19873719966 patent/DE3719966A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CH671537A5 (en) | 1989-09-15 |
| FR2616447A1 (en) | 1988-12-16 |
| FR2616447B1 (en) | 1989-10-27 |
| DE3719966A1 (en) | 1988-12-29 |
| DE3719966C2 (en) | 1989-06-15 |
| SE8702408L (en) | 1988-12-11 |
| SE8702408D0 (en) | 1987-06-10 |
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