CN209665152U

CN209665152U - A kind of PCD abrading block cutter head

Info

Publication number: CN209665152U
Application number: CN201920049358.1U
Authority: CN
Inventors: 谢昆; 王朝欣; 宋浩; 杜刚; 宋淑华; 牛胜亚
Original assignee: Zhengzhou Yixin Diamond Tools Co Ltd
Current assignee: Zhengzhou Yixin Diamond Tools Co Ltd
Priority date: 2019-01-12
Filing date: 2019-01-12
Publication date: 2019-11-22
Anticipated expiration: 2029-01-12

Abstract

The utility model discloses a kind of PCD abrading block cutter heads, including carcass and PCD fragment, the carcass is metal matrix, it is pressed into regular shape, the PCD fragment is the fragment that PCD composite sheet is cut and/or formed after broken, the PCD fragment is uniformly unordered or orderly to be distributed in inside metal matrix, and the PCD fragment is also distributed in the part of the surface of metal matrix, and the PCD fragment being distributed on metal matrix surface is unordered arranges and/or by certain regular arrangement.The utility model solve epoxide terrace, paint terrace or terrazzo terrace renovate during the organic matters card plug such as resin or paint on cutter head, the problem of reducing grinding efficiency, and PCD area coverage is big, it is not easy to it is broken, to substantially increase the service life of abrading block.

Description

A kind of PCD abrading block cutter head

Technical field

The utility model relates to technical field of superhard material, more particularly, to a kind of PCD abrading block cutter head.

Background technique

Abrading block is widely applied in the polishing of epoxy, rubber, paint etc. on concrete, terrazzo floor, it can also be used to flower Basis processing before the levelings of the stone floors such as Gang Yan, marble, corase grinding, polishing, removal surface hard epoxy, acetylene etc. are attached Object.

Traditional abrading block cutter head is all to be substantially the polishing for new ground using the cutter head of diamond particles sintering, Have the advantages that sharp, wear-resisting, not chipping, but during epoxide terrace, paint terrace or terrazzo terrace renovate, such as Fruit also uses traditional abrading block, and due to the resin on ground, You Qi Alto organic matter is easy card plug on bistrique surface, to cause tradition Abrading block grinding efficiency is low.

Therefore, and the mill combined using PCD (Polycrystalline Diamond) cutter head and traditional abrading block has been invented Block is ground higher segment design using PCD cutter head and than general technology combination floor, and the service life is longer.

For example the Chinese patent that notification number is CN204772143U discloses a kind of terrace grinding on November 18th, 2015 The terrace abrading block of processing, the processing especially suitable for materials terraces such as epoxide terrace, rubber terrace, asphalt floors.The device packet Include bottom surface in dovetail shaped cartridge structure steel matrix, be welded at steel matrix end face center line position diamond segment, be located at The PDC cutter head of diamond tool both sides of head；The PDC cutter head is inlaid in the oblique circular cylinder slot processed in steel matrix by welding manner It is interior；The oblique circular cylinder slot and the angle of steel matrix plane are 5 °~20 °；The PDC cutter head is higher than diamond segment.This is practical new Type can be completed at the same time corase grinding and fine grinding two procedures, high in machining efficiency, long service life, convenient for disassembly and assembly.

Notification number be the Chinese patent of CN203650161U disclosed on June 18th, 2014 a kind of special grinding covering compared with The PCD terrace abrading block of the attachments terrace such as thick epoxy resin, paint, including diamond segment, PCD cutter head, matrix；Diamond tool Head and PCD cutter head are each provided in the plane of matrix the same side, and the left-half of matrix lower end surface is arranged in the diamond segment, The stepped right half part for being laid in matrix lower end surface of PCD cutter head；Described matrix is provided at left and right sides of upper surface Heart line is axisymmetric bending.The utility model can be avoided the generation of card plugs phenomenons between cutter head such as paint, product quality Stablize, long service life, high production efficiency, with can be widely applied to the materials such as paint ground, epoxy resin ground, asphalt floor The grinding on level ground.

But above-mentioned patent has two, one is ground scratch depth after the PCD bistrique processing roughly ground, PCD bistrique Subsequent fine grinding diamond segment is easy to be painted, resin energy Organic Material Blocking cutter head, to can not play the role of fine grinding；Separately One is that PCD bistrique is spaced apart, and area coverage is small, and single grinding area is small, and low efficiency, PCD bistrique height is high, and what is be subject to rushes It is big to hit power, is easily broken and causes the service life low, poor durability.

Utility model content

In view of this, one of purpose of the invention is in view of the deficiencies of the prior art, to provide a kind of PCD abrading block knife Head is solved in the organic matters card plug such as resin or paint during epoxide terrace, paint terrace or terrazzo terrace renovate On cutter head, the problem of reducing grinding efficiency, and PCD area coverage is big, it is not easy to and it is broken, to substantially increase the longevity of abrading block Life.

It is a further object to provide a kind of production methods of PCD abrading block cutter head.

In order to achieve the above objectives, the invention adopts the following technical scheme:

A kind of PCD abrading block cutter head, including carcass and PCD fragment, the carcass are metal matrix, are pressed into regular shape, The PCD fragment is the fragment that PCD composite sheet is cut and/or formed after broken, there is diamond layer and hard on every PCD fragment Matter alloy-layer, the PCD fragment are rule and/or irregular shape, and the PCD fragment is uniformly unordered or orderly to be distributed in gold Belong to inside carcass, the PCD fragment is also distributed in the part of the surface of metal matrix, described to be distributed on metal matrix surface PCD fragment is unordered arranges and/or by certain regular arrangement.

Further, the carcass be multi-component alloys carcass, group be divided into iron, nickel, cobalt, copper, tin, zinc, lead, silicon, tungsten, Two or more in titanium, aluminium, chromium, molybdenum, phosphorus and rare earth element.

Further, the size of the PCD fragment is 1-10mm.

A kind of production method of PCD module, its step are as follows:

S1, by PCD composite sheet cut or it is broken obtain PCD fragment, cutting method is with laser cutting method or to use line Patterning method, breaking method are to tap crush method.

S2, PCD fragment is handled to obtain the clean PCD fragment in surface, processing method is method of chemical treatment or physics Facture；

Method of chemical treatment is first to be cleaned with cleaning agent, is then rinsed with pure water, then cleaned with acetone or alcohol, is finally used Pure water rinses, then dries to obtain the clean PCD fragment in surface；

Physical treatment process is that PCD fragment is placed on sandblasting in blasting cabinet, with pressure-air by PCD fragment surface after sandblasting Dust blow down, just obtain the clean PCD fragment in surface.

S3, metal powder mixing or metal powder are mixed with PCD fragment, and metal powder is weighed according to the proportion and a certain amount of uses batch mixer Metal powder is weighed a certain amount by mixing according to a certain ratio, and PCD fragment and metal powder are used by certain volume ratio and mixed The mixing of material machine.

S4, mixed metal powder is put into the mold of press, then by PCD fragment according to certain regular array in grinding tool In, regular shape carcass is pressed into after then being buried with metal powder；Or mixed metal powder and PCD fragment are directly placed into pressure In the mold of machine, it is pressed into regular shape carcass.

S5, PCD fragment is taken, be placed on the regular shape carcass portion surface that step S4 is obtained, then slightly by PCD fragment Minute-pressure enters in carcass, but the overwhelming majority of PCD fragment is also exposed at carcass surface, obtains PCD abrading block cutter head blank, PCD fragment exists Regular shape carcass surface is unordered and/or by certain regular arrangement.

S6, the PCD abrading block cutter head blank for obtaining step S5, sintering obtains PCD abrading block cutter head after carrying out high temperature, and sintering is set Standby is pressing sintering or vacuum sintering furnace.

Further, in the step S1, PCD composite sheet is cutter PCD composite sheet or mining PDC composite sheet or petroleum With PDC composite sheet, including completely new PCD composite sheet and used PCD composite sheet.

Further, in the step S2, chemical cleaning method needs clean under the action of ultrasonic wave, improve cleaning effect The frequency of rate, the ultrasonic wave of supersonic wave cleaning machine used determines frequency ultrasonic cleaning machine or broadband for 28kHz, 40kHz or 53kHz Frequency modulation supersonic wave cleaning machine, the temperature of ultrasonic cleaning process cleaning liquid are 40-60 DEG C.

Further, in the step S3, metal powder is elemental metals powder and/or prealloy powder.

It further, is cold moudling in the step S4.

Further, in the step S6, sintering temperature is 750-1000 DEG C.

A kind of PCD abrading block cutter head of the invention needs to be arranged to be used on matrix, and set-up mode is according to base on matrix The shape and actual use setting of body.

The beneficial effects of the present invention are:

1, for the present invention by PCD fragment in conjunction with metal matrix, PCD fragment is located at carcass surface and inside, depth of cut Less than bistrique made of PCD, but have greater than diamond grinding head, the depth of cut is moderate, and the impact force being subject to is small, and PCD fragment is not fragile Damage, wearability increase, and the gap between PCD fragment is not easy by the organic matter card plug of resin, paint etc, and abrading block is sharp, Abrading block it is high-efficient, the service life is long.

2, the PCD fragment that the present invention uses can not only use completely new PCD composite sheet to be made, and can also use old PCD composite sheet, such as used PCD blade, after the PCD composite sheet and cutting in used geology and/or oil bit PCD composite sheet leftover pieces, material source is extensive, and type is more, at the same for waste and old PCD blade, waste and old geology and oil bit and PCD composite sheet leftover pieces find new outlet.

3, a kind of PCD abrading block cutter head of the invention is during epoxide terrace, paint terrace or terrazzo terrace renovate Its efficiency and service life higher than the efficiency and service life of traditional diamond grinding block and PCD bistrique more, and use cost is cheap.

4, of the invention due to being added to PCD fragment, the diamond layer on PCD fragment carries out rapid stock-removal, PCD to ground Hard alloy layer on fragment faces the abrasion of metal matrix with hindering, to extend the service life of abrading block.

5, a kind of PCD abrading block cutter head of the invention can be customized metaplasia production, produce according to actual needs or customer requirement Product shape and thickness, with the amount of PCD fragment, customization is may be selected in the distribution mode of PCD fragment, and the further market that adapts to needs It asks.

Detailed description of the invention

Fig. 1 is a kind of cuboid PCD abrading block cutter head of the invention.

Fig. 2 is a kind of hexagon cylinder PCD abrading block cutter head of the invention.

Fig. 3 is a kind of cylindrical body PCD abrading block cutter head of the invention.

Fig. 4 is that PCD fragment of the invention is evenly distributed on the situation in carcass.

In figure: 1- carcass, 2-PCD fragment.

Specific embodiment

The invention will be further described with reference to the accompanying drawings and examples.

Embodiment one:

As shown in Figure 1, a kind of production method of PCD abrading block cutter head, its step are as follows:

S1, the triangle and quadrangle PCD fragment 2 that completely new mining PDC composite sheet is cut into rule with wire cutting, thirdly Angular PCD fragment 2 is having a size of 7mm, and quadrangle PCD fragment 2 is having a size of 4mm × 4mm × 3mm.

S2, it the PCD fragment 2 after cutting is put into spends in greasy dirt detergent solution, then under the action of ultrasonic wave, Cleaning, without greasy dirt, is then cleaned three times, then cleaned once with acetone with pure water to surface, then cleans one with pure water again It is secondary, it is finally putting into baking oven and dries, obtain the clean PCD fragment 2 in surface；

Degreasing cleaning agent used is dish washing liquid, and scavenging period is indefinite, until 2 surface of PCD fragment is without greasy dirt, uses pure water Three times, each scavenging period is 5 minutes for cleaning, is cleaned once with acetone, and scavenging period is 20 minutes, uses pure water after allowing again Cleaning is primary, and scavenging period is 5 minutes, is finally putting into baking oven and is dried with 60 DEG C of temperature, it is broken to obtain the clean PCD in surface Block 2.

S3, use CSB prealloy powder as basic powder, addition copper powder, iron powder weigh a certain amount of match according to certain formula It after material, is put into three-dimensional material mixer and mixes, in order to be uniformly mixed, mixing steel ball is added in three-dimensional material mixer, is mixed after mixing Close material A.

Prealloy powder presses designed composition proportion, and metal is made up to the conjunction of specified particle size of the methods of pyrometallurgy Bronze end, pre-alloyed powder due to the various metallic elements that each powder particle includes component alloy, prealloy powder at Divide uniformity fairly good.Since its eutectic point is more much lower than single element fusing point in alloy, in sintering process, as long as temperature reaches When more than the liquidus curve of pre-alloyed powder a bit, the powder of entire binding metal ingredient melts, so pre-alloyed powder sintering temperature It spends low.

S4, mixture A is first uniformly spread into one layer, then the quadrangle PCD fragment 2 that surface is clean in the mold of press According to certain regular array in grinding tool, for example, quadrangle PCD fragment 2 diamond layer one towards a left side, one towards it is right staggeredly It places, is covered after putting one layer with mixture A, continue to place quadrangle PCD fragment 2 according to the above method, then covered with mixture A, Until height corresponding in press die, with press by mold mixture A and quadrangle PCD fragment be cold-pressed into and mold phase The carcass 1 for the regular shape matched, for example the shape of carcass 1 is cuboid.

After S5, cold pressing, the carcass 1 of cuboid is taken out, uniformly sprinkles triangle on a face of cuboid carcass 1 Then PCD fragment 2, the PCD fragment 2 of triangle gently press the PCD fragment of triangle in the disorder distribution that is distributed as on surface with tool 2, it is in close contact a face of triangle PCD fragment 2 and rectangle carcass 1 and partially enters in carcass 1, but triangle Most volumes of PCD fragment 2 are also exposed at 1 surface of carcass, obtain a kind of PCD abrading block cutter head blank of cuboid.

S6, the PCD abrading block cutter head blank by a kind of obtained cuboid of step S5, are put into vacuum sintering furnace and heat, Vacuum degree is 1000-100000Pa, and temperature is 860 DEG C of progress vacuum-sinterings, and a kind of PCD abrading block knife of cuboid is obtained after sintering Head has PCD fragment 2 outstanding on one of surface of the abrading block cutter head.

Embodiment two:

A kind of production method of PCD abrading block cutter head, its step are as follows:

S1, the triangle and quadrangle PCD fragment 2 that completely new mining PDC composite sheet is cut into rule with laser cutting machine, Its triangle PCD fragment 2 is having a size of 8mm, and quadrangle PCD fragment 2 is having a size of 5mm.

S2, the PCD fragment 2 after cutting is first polished the cut surface of PCD under the cooling of cooling water with skive Light, then the PCD fragment 2 after wire cutting is put into and is spent in greasy dirt detergent solution, then under the action of ultrasonic wave, clearly Surface is washed till without greasy dirt, is then cleaned three times with pure water, then is cleaned once with acetone, is then cleaned once with pure water again, It is finally putting into baking oven and dries, obtain the clean PCD fragment 2 in surface；

S3, use CSB prealloy powder as basic powder, addition zinc powder, iron powder weigh a certain amount of match according to certain formula After material, the PCD fragment 2 of part triangle and quadrangle is also placed in metal powder, the volume of PCD fragment 2 and metal powder Volume ratio is 1:2, is put into three-dimensional material mixer and mixes, and mixing ball, PCD fragment 2 not can be used as mixing ball use, mixing in mixture After obtain mixture B.

S4, it a certain amount of mixture B will be weighed pours into the mold of press, be cold-pressed the mixture B in mold with press Shape at the carcass 1 of the regular shape to match with mold, such as carcass 1 is curved cuboid.

S6, the PCD abrading block cutter head blank by a kind of obtained cuboid of step S5, are put into vacuum sintering furnace and heat, Vacuum degree is 1000-100000Pa, and temperature is 860 DEG C of progress vacuum-sinterings, and a kind of PCD abrading block knife of cuboid is obtained after sintering Head has PCD fragment outstanding on one of surface of the abrading block cutter head.

Embodiment three:

S1, the triangle and quadrangle PCD fragment 2 that completely new mining PDC composite sheet is cut into rule with laser cutting machine, The triangle and quadrangle PCD fragment 2 of rule, triangle will be cut into PCD composite sheet with laser cutting machine from used abandoned mine Shape PCD fragment 2 is having a size of 5mm, and quadrangle PCD fragment 2 is having a size of 3mm.

S2, the PCD fragment 2 after cutting is first polished the cut surface of PCD under the cooling of cooling water with skive Light, then the PCD fragment 2 after wire cutting is put into and is spent in greasy dirt detergent solution, then under the action of ultrasonic wave, clearly Surface is washed till without greasy dirt, is then cleaned three times with pure water, then is cleaned once with ethyl alcohol, is then cleaned once with pure water again, It is finally putting into baking oven and dries, obtain the clean PCD fragment 2 in surface；

As basic powder, addition zinc powder, iron powder weigh a certain amount of according to certain formula for S3, the CSB prealloy powder used After ingredient, the PCD fragment 2 of part triangle and quadrangle is also placed in metal powder, the volume and metal powder of PCD fragment 2 Volume ratio be 1:2, be put into three-dimensional material mixer and mix, not mixing ball in mixture, PCD fragment 2 can be used as mixing ball use, mix Mixture C is obtained after conjunction.

S4, it a certain amount of mixture C will be weighed pours into the mold of press, be cold-pressed the mixture C in mold with press It is positive hexagonal column body at the shape of the carcass 1 of the regular shape to match with mold, such as carcass 1.

After S5, cold pressing, positive hexagonal column body carcass 1 is taken out, uniformly sprinkles three on a bottom surface of positive hexagonal column body carcass 1 Then angular PCD fragment 2, the PCD fragment 2 of triangle gently press triangle with tool in the disorder distribution that is distributed as on surface PCD fragment 2 is in close contact a face of triangle PCD fragment 2 and positive 1 body of hexagonal column body tire and partially enters carcass 1 In, but most volumes of triangle PCD fragment 2 are also exposed at 1 surface of carcass, obtain a kind of PCD mill of positive hexagonal column body Block cutter head blank.

S6, by a kind of PCD abrading block cutter head blank of the obtained positive hexagonal column body of step S5, be put into vacuum sintering furnace plus Heat, vacuum degree 1000-100000Pa, temperature are 860 DEG C of progress vacuum-sinterings, and a kind of positive hexagonal column body is obtained after sintering PCD abrading block cutter head has PCD fragment outstanding on one of surface of the abrading block cutter head.

Example IV:

S1, the triangle and quadrangle PCD fragment 2 that completely new mining PDC composite sheet is cut into rule with laser cutting machine, The triangle and quadrangle PCD fragment 2 of rule will be cut into PCD composite sheet with laser cutting machine from used Spent, thirdly Angular PCD fragment 2 is having a size of 4.5mm, and quadrangle PCD fragment 2 is having a size of 4mm.

S2, the PCD fragment 2 after cutting is put into blasting cabinet and uses pressure >=0.7MPa compressed air sandblasting, after sandblasting The dust on 2 surface of PCD fragment is then blown down with clean compressed air, it is clean to obtain surface without spot in the surface of PCD fragment 2 PCD fragment 2.

S3, with iron powder, copper powder, cobalt powder, nickel powder, zinc powder according to the quality of 55:30:10:10:5 than ingredient after, by part three Angular and quadrangle PCD fragment 2 is also placed in metal powder, and the volume of PCD fragment 2 and the volume ratio of metal powder are 1:2, is put Enter in three-dimensional material mixer and mix, mixing ball, PCD fragment 2 not can be used as mixing ball use, mixture D obtained after mixing in mixture.

S4, it a certain amount of mixture D will be weighed pours into the mold of press, be cold-pressed the mixture D in mold with press At the curved cuboid of shape of the carcass 1 of the regular shape to match with mold, such as carcass 1.

S6, the PCD abrading block cutter head blank by a kind of obtained cuboid of step S5, are put into the die for special purpose of pressing sintering In tool, it is pressurized to 12MPa, 880 DEG C is heated to, pressure maintaining 10 minutes, obtains PCD abrading block cutter head after stopping hot pressure release.

Embodiment five:

S1, rule is cut into PCD composite sheet with wire cutting in hard alloy part by abandoned mine PDC composite sheet and waste oil Then triangle taps non-PDC composite sheet with hand hammer, obtains PCD fragment 2, triangle PCD fragment 2 is having a size of 4mm.

S2, the PCD fragment 2 after cutting is put into blasting cabinet and uses pressure >=0.7MPa compressed air sandblasting, after sandblasting Then the surface of PCD fragment 2 blows down the dust of PCD fragment surface without spot with clean compressed air, it is clean to obtain surface PCD fragment 2.

S3, with prealloy powder YA324, iron powder, copper powder, cobalt powder according to the quality of 60:15:10:15 than ingredient after, be put into three It is mixed in dimension batch mixer, mixing steel ball is added in mixture, mixture E is obtained after mixing.

S4, mixture E is first uniformly spread into one layer, then the triangle shape that surface is clean in the cylinder mold of press PCD fragment 2 is according to certain regular array in grinding tool, for example triangle PCD fragment 2 is put concentric round shape and placed, PCD fragment Diamond layer outwardly, covered after putting one layer with mixture E, continue holding triangular PCD fragment 2 according to the above method, then with mixing Material E is closed to cover, until height corresponding in press die, with press by mold mixture E and triangle PCD fragment be cold-pressed Shape at the carcass 1 of the regular shape to match with mold, such as carcass 1 is cylindrical body.

After S5, cold pressing, cylindrical body carcass 1 is taken out, uniformly sprinkles triangle on a bottom surface of cylindrical body carcass 1 PCD fragment 2, the PCD fragment 2 of triangle surface the also concentric round shape that is distributed as, the diamond layer of PCD fragment 2 outwardly, so The PCD fragment 2 for gently pressing triangle with tool afterwards is in close contact a face of triangle PCD fragment 2 and cylindrical body carcass 1 simultaneously Part enters in carcass 1, but most volumes of triangle PCD fragment 2 are also exposed at 1 surface of carcass, obtain a kind of circle The PCD abrading block cutter head blank of cylinder.

S6, the PCD abrading block cutter head blank by a kind of obtained cylindrical body of step S5, are put into the die for special purpose of pressing sintering In tool, it is pressurized to 12MPa, 920 DEG C is heated to, pressure maintaining 9 minutes, obtains PCD abrading block cutter head after stopping hot pressure release.

Embodiment six:

S1, the triangle that hard alloy part is cut into rule by completely new mining PDC composite sheet with wire cutting, are then used Hand hammer taps non-PDC composite sheet, obtains PCD fragment 2, and triangle PCD fragment 2 remains after taking production PCD cutter having a size of 4mm Remaining leftover pieces do PCD fragment 2.

S2, PCD fragment 2 is put into blasting cabinet with pressure >=0.7MPa compressed air sandblasting, PCD fragment 2 after sandblasting Surface without spot, the dust on 2 surface of PCD fragment is then blown down with clean compressed air, obtains the clean PCD fragment in surface 2。

S3, with prealloy powder FOLLOW400, prealloy powder 8515, iron powder, nickel powder according to 60:10:10:20 mass ratio After ingredient, the PCD fragment 2 of leftover pieces is also placed in metal powder, the volume of PCD fragment 2 and the volume ratio of metal powder are 1: 2, it is put into three-dimensional material mixer and mixes, mixing ball, PCD fragment 2 not can be used as mixing ball use, mixed after mixing in mixture Expect F.

S4, it a certain amount of mixture F will be weighed pours into the mold of press, be cold-pressed the mixture F in mold with press Shape at the carcass 1 of the regular shape to match with mold, such as carcass 1 is swallow-tail form block.

After S5, cold pressing, swallow-tail form carcass 1 is taken out, uniformly sprinkles triangle on a bottom surface of swallow-tail form carcass 1 Then PCD fragment 2, the PCD fragment 2 of triangle gently press the PCD fragment of triangle in the disorder distribution that is distributed as on surface with tool 2, it is in close contact a face of triangle PCD fragment 2 and swallow-tail form carcass 1 and partially enters in carcass 1, but triangle Most volumes of PCD fragment 2 are also exposed at 1 surface of carcass, obtain a kind of PCD abrading block cutter head blank of swallow-tail form.

S6, the PCD abrading block cutter head blank by a kind of obtained swallow-tail form of step S5, are put into the die for special purpose of pressing sintering In tool, it is pressurized to 14MPa, 860 DEG C is heated to, pressure maintaining 13 minutes, obtains PCD abrading block cutter head after stopping hot pressure release.

Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention Spirit and scope, be intended to be within the scope of the claims of the invention.

Claims

1. a kind of PCD abrading block cutter head, it is characterised in that: including carcass (1) and PCD fragment (2), the carcass (1) is metal tire Body, is pressed into regular shape, and the PCD fragment (2) is the fragment that PCD composite sheet is cut and/or formed after broken, every PCD There are diamond layer and hard alloy layer on fragment (2), the PCD fragment (2) is rule and/or irregular shape, the PCD Metal matrix (1) is internal, and the PCD fragment (2) is also distributed in metal matrix for fragment (2) uniformly unordered or orderly being distributed in (1) in part of the surface, the PCD fragment (2) being distributed on metal matrix (1) surface is unordered arrangement and/or presses certain Regular arrangement.

2. a kind of PCD abrading block cutter head according to claim 1, it is characterised in that: the carcass (1) is multi-component alloys tire Body, group are divided into two kinds or two kinds in iron, nickel, cobalt, copper, tin, zinc, lead, silicon, tungsten, titanium, aluminium, chromium, molybdenum, phosphorus and rare earth element More than.

3. a kind of PCD abrading block cutter head according to claim 1, it is characterised in that: the size of the PCD fragment (2) is 1- 10mm。