CN102248604A - Composite abrasive grain superhard material nodulation-type cutter bit - Google Patents
Composite abrasive grain superhard material nodulation-type cutter bit Download PDFInfo
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- CN102248604A CN102248604A CN2011101932156A CN201110193215A CN102248604A CN 102248604 A CN102248604 A CN 102248604A CN 2011101932156 A CN2011101932156 A CN 2011101932156A CN 201110193215 A CN201110193215 A CN 201110193215A CN 102248604 A CN102248604 A CN 102248604A
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- cutter head
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- boron nitride
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Abstract
The invention discloses a composite abrasive grain superhard material nodulation-type cutter bit. The components of the cutter bit comprise a metal bonding agent and superhard abrasive grains sintered together, wherein the superhard abrasive grains comprise diamond and cubic boron nitride; the diamond has extremely high cutting performance for concrete; and the cubic boron nitride has extremely high cutting performance for reinforcing steel bars. The diamond and the cubic boron nitride are matched with each other, the diamond is mainly used for cutting the concrete, and the cubic boron nitride is mainly used for cutting the reinforcing steel bars, so that the efficiency of processing a concrete member by using a superhard material product can be substantially improved, the service life of the product can be substantially prolonged, and the application range of the superhard material product is widened. The cutter bit is suitable for wet cutting/wet drilling, can be suitable for dry cutting/dry drilling, and better meets the working condition requirements of household decoration projects on the dry cutting/dry drilling under the modern condition.
Description
Technical field
The present invention relates to a kind of multi-block type cutter head of making by sintering (also claiming the work tooth), relate generally to the multi-block type cutter head in the superhard material cutting/drilling tool that uses in the reinforced concrete member cutting/drilling.
Background technology
The superhard material goods are one of key pillars of the national economy industries, are widely used in industry fields such as Aero-Space, automobile, machinery, building, stone material, pottery, electronics, optical glass.Superhard material saw blade and thin-walled are drilled in the manufacture field of reinforced concrete member has irreplaceable effect, especially along with the fast development of Chinese national economy, relate to the construction of road traffic, the acceleration of Development of China's Urbanization and the transformation of old town etc., the consumption figure of these type of superhard material goods is increasing.
At present, be used to process that the saw blade of reinforced concrete member and engineering thin-walled bore all is that to adopt diamond be super hard abrasive, have working (machining) efficiency and life-span preferably when being characterized in processing the concrete component that does not contain reinforcing bar, but when processing contains the concrete component of reinforcing bar, because diamond is under the effect of high temperature friction heat, even having under wet the cutting of the cooling water/situation of boring that wets, also very easily with Fe Fe+C → Fe takes place
3The reaction of C causes the diamond carbonization to be lost efficacy, and loses the processing action of steel bars, thereby causes saw blade or thin-walled to bore the extremely low or inefficacy of working (machining) efficiency, more is unsuitable for the dried cutting/drilled dry working condition of no-cooling-water.Simultaneously, in cutting/drilling process, cutter head can cause the softening of soldered seam between cutter head and matrix because gathering of frictional heat and temperature raise, and the bonding strength of weld seam reduces, and easily falls the tooth phenomenon in the continuous operation process, causes tool failures.Also have; conventional armored concrete saw blade or thin-walled bore cutter head after work a period of time; usually can be because of the wearing and tearing attenuate of metallic bond sintering carcass; carcass is controlled ability drop to adamantine machinery; diamond very easily comes off; the cutting power of cutter head weakens, thereby greatly reduces the sharpness and the service life of instrument, influences the performance of instrument proper efficiency.
In recent years, flourish along with Building Trade in China, highway, high-speed railway, the application quantity of reinforced concrete member is more and more, needs to consume increasing superhard material machining tool, and is also more and more higher to the performance requirement of tool made of superhard material.At present, super-hard abrasive in commercially available armored concrete saw blade/thin drilling bit is the diamond single crystal particle, the cutter head that contains diamond abrasive grain is the fabrication of concrete member effectively, but when meeting the concrete component of reinforcing bar, its working (machining) efficiency and service life then can reduce greatly, its reason is that diamond is not suitable for processing ferrous metal, especially in high-speed cutting/drilling process during the frictional heat cumulative rises, the temperature of cutter head can raise rapidly, at high temperature, the easier passivation of diamond was lost efficacy, and caused the working ability of instrument to reduce or inefficacy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of Compostie abrasive particles superhard material multi-block type cutter head that armored concrete is had good cutting performance.
For solving the problems of the technologies described above, technical scheme of the present invention is: Compostie abrasive particles superhard material multi-block type cutter head, the component of described cutter head comprise sintering metallic bond and super-hard abrasive together, and described super-hard abrasive comprises diamond and cubic boron nitride.
As a kind of optimized technical scheme, the volume by volume concentration of described super-hard abrasive in described cutter head is 9%～60%.
As a kind of optimized technical scheme, the volume by volume concentration of described diamond in described super-hard abrasive is 20%～95%, and the volume by volume concentration of described cubic boron nitride in described super-hard abrasive is 5%～80%.
As a kind of optimized technical scheme, the basic ingredient system of described metallic bond is the combination of element more than three kinds among the Fe-Ni-Co-Cu-Sn-Ti, and the metal dust of described metallic bond is above pre-alloyed powder and/or an elemental metals powder of ternary.
As a kind of optimized technical scheme, be added with one or more the strong carbide/nitride forming element among Cr, W, V, Si and the Ti in the described metallic bond.
Owing to adopted technique scheme, Compostie abrasive particles superhard material multi-block type cutter head, the component of described cutter head comprise sintering metallic bond and super-hard abrasive together, and described super-hard abrasive comprises diamond and cubic boron nitride; Diamond has good cutting performance to concrete, cubic boron nitride has good cutting performance to reinforcing bar, diamond and cubic boron nitride are used, diamond main attack concrete, cubic boron nitride main attack reinforcing bar, can increase substantially the efficient and the life-span of superhard material goods fabrication of concrete member, widen the range of application of superhard material goods, not only be suitable for the wet brill of cutting/wet, can also be suitable for dried cutting/drilled dry, satisfy house decoration engineering under the modern condition preferably the working condition requirement of dried cutting/drilled dry.
The specific embodiment
Below in conjunction with embodiment and application example, further set forth the present invention.In the following detailed description, only some one exemplary embodiment of the present invention has been described by the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under situation without departing from the spirit and scope of the present invention, can revise described embodiment with various mode.Therefore, being described in is illustrative in essence, rather than is used to limit the protection domain of claim.
Compostie abrasive particles superhard material multi-block type cutter head, the component of described cutter head comprises sintering metallic bond and super-hard abrasive together, the basic ingredient system of described metallic bond is the combination of element more than three kinds among the Fe-Ni-Co-Cu-Sn, and the metal dust of described metallic bond is above pre-alloyed powder and/or an elemental metals powder of ternary; The volume by volume concentration of described super-hard abrasive in described cutter head is 9%～60%; Described super-hard abrasive comprises diamond and cubic boron nitride, and the volume by volume concentration of described diamond in described super-hard abrasive is 20%～95%, and the volume by volume concentration of described cubic boron nitride in described super-hard abrasive is 5%～80%.
In order to strengthen the case hardness of cutter head, improve the wearability of cutter head, be added with one or more the strong carbide/nitride forming element among Cr, W, V, Si and the Ti in the described metallic bond, in the process of hot pressure reaction sintering cutter head, the strong carbide/nitride forming element of one or more among Cr, W, V, Si and the Ti and metallic bond reaction, side at cutter head shows formation hard, wear-resistant phase, strengthen the cutter head surface abrasion resistance, prolong life tools, improve machining accuracy.
After adopting above-mentioned technical finesse, compare with the cutter head of other common process production, cutter head of the present invention has possessed following outstanding advantage:
1. because the super hard abrasive in the cutter head adopts diamond and CBN assembly to use, given full play to the performance characteristics of two kinds of different abrasive materials, improved the processing usefulness of saw blade or thin-walled brill to reinforced concrete member greatly, its efficient and service life, the instrument of all more conventional single employing diamond abrasive was improved largely.
The side surface hardness of cutter head obviously improves, and the cutter head of producing than common process improves more than 30%, can reach more than the HRB116; increased substantially the cutter head surface abrasion resistance; protection internal layer carcass metal is frayed, keeps the cutter head gauge, ensures stably process continuously.
2. owing to contain the CBN abrasive material in the cutter head, strengthened the working ability of instrument greatly to reinforcing bar, cutter head of the present invention is not only applicable to the wet cutting/driller's condition that wets of cooling water, also is suitable for the dried cutting/drilled dry operating mode of no-cooling-water, this be the conventional in the past instrument that contains single diamond abrasive grain can't be obtained.
3. after being added with one or more the strong carbide/nitride forming element among Cr, W, V, Si and the Ti in the described metallic bond, the cutter head side surface of making has the hard, wear-resistant phase, after the cure process of cutter head surface, non-oxidizability and wearability strengthen, the sintering carcass strengthens the adamantine mechanical hold in top layer, and adamantine expulsion rate reduces, and effective rate of utilization improves, cutter head is attenuate not easy to wear in process, can keep good machining accuracy and working (machining) efficiency.
The present invention implements diamond and cubic boron nitride (CBN) organic assembling to have complementary advantages to the two: when the non-reinforced concrete of processing position, the diamond in the cutter head can be given full play to concrete processed edge, guarantees the processing usefulness of instrument; And when running into the reinforcing bar position, then can give full play to the processed edge of cubic boron nitride (CBN) to ferrous metal, guarantee the fast shut-off reinforcing bar, diamond and cubic boron nitride (CBN) effect of alternately making the most of the advantage, then can improve the integral body processing usefulness of instrument greatly, the working (machining) efficiency and the service life of improving instrument significantly.
The present invention is described further below in conjunction with experimental data.
Application example one:
Φ 63mm individual layer cutter head thin-walled bores
The individual layer arc thin-wall of preparation 20mm (length) * 8mm (height) * 4mm (thick) bores cutter head.The alloy system of cutter head is Fe-Ni-Co-Cu-Sn-Ti, and super hard abrasive is 65% diamond and 35% cubic boron nitride, and its total volumetric concentration is 18%～22%.The metallic bond of cutter head adopts pre-alloyed powder and elemental metals powder combinations application mode, earlier metallic bond and super hard abrasive being mixed back cold moudling is that individual layer saves the piece idiosome, and then the idiosome of will colding pressing places the hot pressed sintering mould, at 860 ℃ of hot pressure reaction sinterings, be fired into the individual layer joint piece cutter head of density＞98.5%, and make the cutter head outer surface form the Fe of discontinuous distribution
3The wear-resisting phase of C, surface local hardness can reach HRB127.The cutter head of firing after putting the first edge on a knife or a pair of scissors is welded on the steel substrate finished product thin drilling bit.
Boring drilling thickness with this thin-walled is 200mm, the C50 concrete component that contains 4 layers of φ 18mm screw-thread steel, but drilling boring more than 70, boring average speed is 5～15min/ hole, speed than conventional bit improves more than 1 times, and the advantage in drilling efficiency and service life is very outstanding.In addition, because cutter head outer surface wearability is good, cutter head attenuate not easy to wear in the drilling process, sharpness is good, and drilling process is steadily quick, no drill bit jam phenomenon, bore the core row of getting easily, overcome the bit freezing that like product brings because of cutter head thickness wearing and tearing attenuate, stopped boring, get problem such as core difficulty.
Application example two:
The stacked cutter head thin-walled of Φ 63mm bores
The preparation overall dimensions is that the thin-walled of 20mm (length) * 8mm (height) * 3mm (thick) bores cutter head, and its thickness direction is that three thick laminations stacks of 1mm are fired and formed.The alloy system of the metallic bond of each synusia of cutter head is Fe-Ni-Co-Cu-Sn-Ti system, and super hard abrasive is 70% diamond and 30% cubic boron nitride (CBN).The volumetric concentration of two super hard abrasives in the outside is 20%, and the volumetric concentration of middle synusia is 16%.Be cold-pressed into embryo after earlier metallic bond and super hard abrasive being mixed, the idiosome of will colding pressing then stack is assembled in the hot pressed sintering mould, fire " sandwich " formula finished product cutter head in 850 ℃ on hot press, the finished product cutter head after will putting the first edge on a knife or a pair of scissors again is welded on the steel substrate, prepares the finished product thin drilling bit.Equally, in the hot pressed sintering process, also can generate the Fe of discontinuous distribution at the cutter head outer surface
3C hard, wear-resistant phase.
Bore the wet thick 200mm of boring with this thin-walled, contain the C60 concrete prefabricated board of 4 layers of φ 18mm screw-thread steel, the drilling average speed on platform drill is the 2.5min/ hole, and drilling hole amount surpasses 90 holes.And be the brick wall of 300mm with hand drill drilled dry thickness, its drilling hole amount surpasses 200 holes, and average drilling speed is the 1.5min/ hole, and the advantage in its efficient and life-span is comparatively obvious.
Application example three:
Φ 400mm individual layer cutter head armored concrete saw blade
Cutter head metallic bond alloy system is Fe-Ni-Cu-Co-Sn-Ti, super hard abrasive is 70% diamond and 30% cubic boron nitride (CBN), the armored concrete individual layer saw blade tip of preparation (length) 40mm * (height) 12mm * (wide) 3.6mm, total volumetric concentration of super hard abrasive is 25% in the cutter head.Be cold-pressed into joint piece idiosome after at first metallic bond and super hard abrasive being mixed evenly, the idiosome of will colding pressing then places sintering mold to carry out hot pressed sintering on hot press, and sintering temperature is 860 ℃, and the average hardness of sintering cutter head is HRB115.At last, the finished product cutter head of firing is welded in after putting the first edge on a knife or a pair of scissors on the steel substrate, prepares the finished product saw blade.
Wet to cut thickness be 100mm with this saw blade, contains the concrete prefabricated board of 2 layers of φ 8mm bar-mat reinforcement, and cutter power is 4KW, and rotational line speed is 36m/min, and the cutting speed of saw blade is 1.1m/min, and the cutting life-span is 1200m.This saw blade is the non-reinforced C25 cement floor of 80mm in cutting thickness, and cutting speed is 1.3m/min, and the cutting life-span surpasses 2000 linear meters.
Application example four:
The stacked cutter head concrete of Φ 400mm saw blade
Preparation size is the three lamination armored concrete saw blade tips of (length) 20mm * (height) 12mm * (wide) 3.6mm.The metallic bond alloy system is Fe-Ni-Cu-Sn-Ti, and super hard abrasive is the combination abrasive particle of diamond and cubic boron nitride (CBN).The volumetric concentration of outer-skin sheet super hard abrasive is 26% (70% diamond+30%CBN), the concentration of inner layer piece super hard abrasive are 20% (70% diamond+30%CBN).Under the working condition identical with application example three, the wet reinforced concrete prefabricated board of cutting thickness 100mm, containing 2 layers of φ 8mm, average cutting speed is 1.3m/min, cutting process is steady, also can remain a constant speed when running into reinforcing bar and cut into, the saw blade cutting life-span surpasses 1200 linear meters.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. Compostie abrasive particles superhard material multi-block type cutter head, the component of described cutter head comprises sintering metallic bond and super-hard abrasive together, it is characterized in that: described super-hard abrasive comprises diamond and cubic boron nitride.
2. Compostie abrasive particles superhard material multi-block type cutter head as claimed in claim 1, it is characterized in that: the volume by volume concentration of described super-hard abrasive in described cutter head is 9%～60%.
3. Compostie abrasive particles superhard material multi-block type cutter head as claimed in claim 2, it is characterized in that: the volume by volume concentration of described diamond in described super-hard abrasive is 20%～95%, and the volume by volume concentration of described cubic boron nitride in described super-hard abrasive is 5%～80%.
4. Compostie abrasive particles superhard material multi-block type cutter head as claimed in claim 1, it is characterized in that: the basic ingredient system of described metallic bond is the combination of element more than three kinds among the Fe-Ni-Co-Cu-Sn-Ti, and the metal dust of described metallic bond is above pre-alloyed powder and/or an elemental metals powder of ternary.
5. Compostie abrasive particles superhard material multi-block type cutter head as claimed in claim 4 is characterized in that: be added with one or more the strong carbide/nitride forming element among Cr, W, V, Si and the Ti in the described metallic bond.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101932156A CN102248604A (en) | 2011-07-12 | 2011-07-12 | Composite abrasive grain superhard material nodulation-type cutter bit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101932156A CN102248604A (en) | 2011-07-12 | 2011-07-12 | Composite abrasive grain superhard material nodulation-type cutter bit |
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| CN102248604A true CN102248604A (en) | 2011-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104293291A (en) * | 2014-01-09 | 2015-01-21 | 河南富耐克超硬材料股份有限公司 | Superhard composite abrasive material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112486U (en) * | 1991-11-13 | 1992-08-12 | 任有新 | Cutter for diamond |
| CN1238717A (en) * | 1996-11-21 | 1999-12-15 | 诺顿公司 | Crenelated abrasive tool |
| CN2567016Y (en) * | 2001-03-20 | 2003-08-20 | 圣-戈宾磨料公司 | Saw blade |
| CN1942284A (en) * | 2004-04-14 | 2007-04-04 | 3M创新有限公司 | Abrasive articles, compositions, and methods of making the same |
| CN101579892A (en) * | 2008-05-15 | 2009-11-18 | 上海钻圣和新材料科技有限公司 | Efficient diamond drill for repairing concrete sleeper and fabricating method thereof |
-
2011
- 2011-07-12 CN CN2011101932156A patent/CN102248604A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112486U (en) * | 1991-11-13 | 1992-08-12 | 任有新 | Cutter for diamond |
| CN1238717A (en) * | 1996-11-21 | 1999-12-15 | 诺顿公司 | Crenelated abrasive tool |
| CN2567016Y (en) * | 2001-03-20 | 2003-08-20 | 圣-戈宾磨料公司 | Saw blade |
| CN1942284A (en) * | 2004-04-14 | 2007-04-04 | 3M创新有限公司 | Abrasive articles, compositions, and methods of making the same |
| CN101579892A (en) * | 2008-05-15 | 2009-11-18 | 上海钻圣和新材料科技有限公司 | Efficient diamond drill for repairing concrete sleeper and fabricating method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104293291A (en) * | 2014-01-09 | 2015-01-21 | 河南富耐克超硬材料股份有限公司 | Superhard composite abrasive material and preparation method thereof |
| CN104293291B (en) * | 2014-01-09 | 2016-06-29 | 富耐克超硬材料股份有限公司 | A kind of superhard abrasive compound and preparation method thereof |
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Application publication date: 20111123 |