CN104907942A - Saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method - Google Patents
Saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method Download PDFInfo
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- CN104907942A CN104907942A CN201510270503.5A CN201510270503A CN104907942A CN 104907942 A CN104907942 A CN 104907942A CN 201510270503 A CN201510270503 A CN 201510270503A CN 104907942 A CN104907942 A CN 104907942A
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- 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
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- 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
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/12—Cut-off wheels
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention relates to a saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method and belongs to the technical field of diamond machining tools. The preparation method is implemented through the following working procedures that a metallic bond and diamond are subjected to material preparation, granulation, cold pressing, hot pressed sintering, laser welding, first edge forming, polishing, painting, checking packaging storage in sequence. According to the saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method, a diamond tool bit is formed by the procedures that the metallic bond and diamond are subjected to the hot pressed sintering under vacuum conditions. By means of the saw-tooth double-faced concave U sharp type concrete laser welding cutting disk preparation method, the prepared cutting disk has the advantages that the cutting seam is narrow, the consumable items are less, the cutting deflection is small, the cut edge is neat, the cutting sharpness is good, and the cutting disk is particularly suitable for the cutting of hard materials including building materials, wall bodies, cement concrete, solidified concrete, reinforced concrete, hard concrete bricks, concrete piles and the like.
Description
Technical field
The present invention relates to the technical field of superabrasive article, more particularly, the present invention relates to a kind of preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade.
Background technology
Current market, cutting piece made from diamond has been widely used in marble, granite, concrete, pitch, pottery, glass, jewels and jade, the material cutting processing such as semiconductor, improve constantly product efficiency, reduce spillage of material, especially at the famous and precious stone material of processing, when jade and glassware and semi-conducting material, reduce spillage of material, increasing economic efficiency is the direction that market is pursued jointly.Cutting piece made from diamond is made up of two aspects: diamond segment and cutting blade center matrix, cutting blade center matrix thickness determines diamond segment thickness, center matrix thickness is thicker, and during cutting, joint-cutting is wider, and cutting efficiency is lower, spillage of material is larger, economic benefit is poorer, and matrix thickness is thinning, and cutter head is thinning, cutting efficiency promotes, and spillage of material declines; But the rigidity of matrix own will be caused after matrix is thinning to decline, and bearing load ability reduces, and produces beat during cutting, and then loses cutting power.
Summary of the invention
In order to solve above-mentioned technical problem of the prior art, the object of the present invention is to provide a kind of preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade.
Realize goal of the invention in order to the technical problem that solves described in invention, present invention employs following technical scheme:
A preparation method for sawtooth two-sided concave U sharp concrete laser weld cutting blade, is prepared by following operation: metallic bond and adamantine batching, granulation-cold pressing-hot pressed sintering-laser weld-put the first edge on a knife or a pair of scissors, polishing, spray paint-test package warehouse-in; It is characterized in that: described diamond segment by metallic bond and diamond under vacuum, forms through hot pressed sintering.
Wherein, hot pressed sintering carries out under vacuum, and sintering temperature is 780 ~ 820 DEG C, and pressure is 250 ~ 300kgf/cm
2.
Wherein, described adamantine concentration is 0.8 ~ 1.1ct/cm
3.
Wherein, described adamantine granularity is 30/35 ~ 45/50; As preferably, granularity be 30/35 volume account for 25 ~ 35%, granularity be 35/40 volume account for 35 ~ 45%, granularity be 40/45 volume account for 25 ~ 35%.
Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 25 ~ 30wt%, the nickel powder of 6 ~ 8wt% of 18 ~ 20wt%, and the atomized alloy powder composition of surplus.
Wherein, in described atomized alloy powder, contain with its weighing scale: the carbide of 15 ~ 20wt%, the cobalt of 10 ~ 15wt%, the tin of 8 ~ 10wt%, the pore creating material of 3 ~ 5wt%, and the iron of surplus.
Wherein, described pore creating material is Brown Alundum, graphite, or their combination.
Wherein, in described FCP alloyed powder, contain following component with its weighing scale: the Co of the Ni of 15 ~ 20wt%, the W of 8 ~ 10wt%, 10 ~ 12wt%, the C of 1.0 ~ 1.5wt%, the WC of 1.0 ~ 1.2wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill.
The preparation method of the preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention, comprises the following steps:
1) batching, granulation: according to proportioning, get atomized alloy powder, FCP alloyed powder, copper powder, and nickel powder; and adding diamond, premix makes molding mass, adopts three-dimensional material mixer batch mixing; then utilize comminutor to carry out granulation and obtain molding mass, particle diameter is 50 ~ 200 μm.
2) cold pressing: adjust moulds of industrial equipment, input molding mass is assembled into extrusion forming in cold moudling punching block and obtains cutting blade base material.
3) hot pressed sintering: cutting blade base is just put into graphite jig, band vacuum environment hot pressed sintering press in carry out pressure sintering, hot pressed sintering temperature at about 800 DEG C, unit pressure 250-300kgf/cm
2.
4) by the cutter head that hot pressed sintering is good, deburring, mill arc is carried out; Together with matrix, on laser welding apparatus, carry out laser weld processing, allow cutter head and matrix link together.
5) polishing, spray paint, put the first edge on a knife or a pair of scissors: the cutting blade that Laser Welding is connected, carry out surface finish, spray varnish, then with grinder buffing, diamond is exposed.
6) inspection, laser marking, pack warehouse-in on request.
Wherein, described cutting blade comprises circular base, and described circular base comprises the first first type surface, second first type surface relative with the first first type surface, and is positioned at the side surface of circumferential edges; What inwardly extend along direction, the circular base center of circle that certain distance formed from described side surface has through multiple chip areas to the first first type surface and the second first type surface, and between adjacent chip area, be formed with diamond segment, described diamond segment has corrugated sawtooth working face, and the diamond cutting face extending to described first first type surface and the second first type surface formed on described sawtooth working face, and described diamond cutting face is formed with U-shaped recess.
Compared with immediate prior art, the preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention has following beneficial effect:
The cutting blade adopting method of the present invention to prepare has the advantages such as joint-cutting is narrow, consumptive material is few, cutting beat is little, trimming neat, cutting sharpness is good, is specially adapted to the cutting of the hard materials such as construction material, body of wall, cement concrete, curing concrete, armored concrete, dry concrete brick and concrete-pile.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention.
Fig. 2 is the floor map of the preparation method of sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention.
Detailed description of the invention
Below with reference to specific embodiment, the preparation method to sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention is further elaborated, and has more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme; It is to be noted that the description of related structure, function and material etc. is all exemplary in embodiment, and do not refer to the restriction to invention protection domain.
As shown in accompanying drawing 1-2, sawtooth two-sided concave U sharp concrete laser weld cutting blade of the present invention, comprise circular base 10, described circular base 10 comprises the first first type surface 12, the second first type surface (not shown) relative with the first first type surface, and is positioned at the side surface 14 of circumferential edges; What inwardly extend along direction, the circular base center of circle that certain distance formed from described side surface has through multiple chip areas 16 to the first first type surface and the second first type surface, and between adjacent chip area 16, be formed with diamond segment 20, described diamond segment 20 has corrugated sawtooth working face 22, and the diamond cutting face 24 extending to described first first type surface and the second first type surface formed on described sawtooth working face 22, and described diamond cutting face is formed with U-shaped recess 26.In Fig. 1-2, on each diamond cutting face, compartment of terrain is provided with two U-shaped recesses, the number of each diamond segment is 15, certain size according to cutting blade and material etc., 1 U recess can also be designed, 3 U-shaped recesses etc., and the number of diamond segment can from 10 to 30 not etc.In addition, described circular base is formed with the louvre 30 of multiple array arrangement, at least two in the louvre 30 of each array arrangement have different diameters.
In the present invention, described diamond segment is formed by metallic bond and diamond hot pressed sintering.Further, described hot pressed sintering carries out under vacuum, and sintering temperature is 780 ~ 820 DEG C, and pressure is 250 ~ 300kgf/cm
2.Wherein, described adamantine concentration is 0.8 ~ 1.1ct/cm
3, and described adamantine granularity is 30/35 ~ 45/50; As preferably, granularity be 30/35 volume account for 25 ~ 35%, granularity be 35/40 volume account for 35 ~ 45%, granularity be 40/45 volume account for 25 ~ 35%.Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 25 ~ 30wt%, the nickel powder of 6 ~ 8wt% of 18 ~ 20wt%, and the atomized alloy powder composition of surplus.In described atomized alloy powder, contain with its weighing scale: the carbide of 15 ~ 20wt%, the cobalt of 10 ~ 15wt%, the tin of 8 ~ 10wt%, the pore creating material of 3 ~ 5wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.In described FCP alloyed powder, contain following component with its weighing scale: the Co of the Ni of 15 ~ 20wt%, the W of 8 ~ 10wt%, 10 ~ 12wt%, the C of 1.0 ~ 1.5wt%, the WC of 1.0 ~ 1.2wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.Described pore creating material is Brown Alundum, graphite, or their combination, and the particle diameter of pore creating material is 1.0 ~ 10 μm.
Laser cutting sheet of the present invention is prepared by the preparation technology comprising following operation: metallic bond and adamantine batching, granulation-cold pressing-hot pressed sintering-laser weld-put the first edge on a knife or a pair of scissors, polishing, spray paint-test package warehouse-in.
Concrete preparation technology is as follows:
1) batching, granulation: according to proportioning, get atomized alloy powder, FCP alloyed powder, copper powder, and nickel powder; and adding diamond, premix makes molding mass, adopts three-dimensional material mixer batch mixing; then utilize comminutor to carry out granulation and obtain molding mass, particle diameter is 50 ~ 200 μm.
2) cold pressing: adjust moulds of industrial equipment, input molding mass is assembled into extrusion forming in cold moudling punching block and obtains cutting blade base material.
3) hot pressed sintering: cutting blade base is just put into graphite jig, band vacuum environment hot pressed sintering press in carry out pressure sintering, hot pressed sintering temperature at about 800 DEG C, unit pressure 250-300kgf/cm
2.
4) by the cutter head that hot pressed sintering is good, deburring, mill arc is carried out; Together with matrix, on laser welding apparatus, carry out laser weld processing, allow cutter head and matrix link together, matrix adopts 30CrMo material.
5) polishing, spray paint, put the first edge on a knife or a pair of scissors: the cutting blade that Laser Welding is connected, carry out surface finish, spray varnish, then with grinder buffing, diamond is exposed.
6) inspection, laser marking, pack warehouse-in on request.
Embodiment 1
In the present embodiment, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of the present embodiment by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 800 DEG C, pressure is 280kgf/cm
2.Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 30wt%, the nickel powder of 6wt% of 18wt%, and the atomized alloy powder composition of surplus.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.In described atomized alloy powder, contain with its weighing scale: the tin of the tungsten carbide of 20wt%, the cobalt of 10wt%, 10wt%, the Brown Alundum of 2.8wt%, the graphite of 1.2wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.And the particle diameter of the copper powder adopted in metallic bond and nickel powder is 1.0 ~ 10 μm.
Embodiment 2
In the present embodiment, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of the present embodiment by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 800 DEG C, pressure is 280kgf/cm
2.Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 25wt%, the nickel powder of 8wt% of 20wt%, and the atomized alloy powder composition of surplus.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.In described atomized alloy powder, contain with its weighing scale: the tin of the tungsten carbide of 20wt%, the cobalt of 10wt%, 10wt%, the Brown Alundum of 2.8wt%, the graphite of 1.2wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.And the particle diameter of the copper powder adopted in metallic bond and nickel powder is 1.0 ~ 10 μm.
Embodiment 3
In the present embodiment, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of the present embodiment by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 780 DEG C, pressure is 300kgf/cm
2.Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 30wt%, the nickel powder of 6wt% of 18wt%, and the atomized alloy powder composition of surplus.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.In described atomized alloy powder, contain with its weighing scale: the tin of the tungsten carbide of 20wt%, the cobalt of 10wt%, 10wt%, the Brown Alundum of 2.8wt%, the graphite of 1.2wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.And the particle diameter of the copper powder adopted in metallic bond and nickel powder is 1.0 ~ 10 μm.
Embodiment 4
In the present embodiment, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of the present embodiment by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 820 DEG C, pressure is 250kgf/cm
2.Wherein, described metallic bond is by FCP alloyed powder, the copper powder of 25wt%, the nickel powder of 8wt% of 20wt%, and the atomized alloy powder composition of surplus.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.In described atomized alloy powder, contain with its weighing scale: the tin of the tungsten carbide of 20wt%, the cobalt of 10wt%, 10wt%, the Brown Alundum of 2.8wt%, the graphite of 1.2wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.And the particle diameter of the copper powder adopted in metallic bond and nickel powder is 1.0 ~ 10 μm.
Comparative example 1
In this comparative example, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of this comparative example by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 800 DEG C, pressure is 280kgf/cm
2.Wherein, described metallic bond is by being atomized alloy powder.Wherein, adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described atomized alloy powder, contain: the nickel of the tin of 4.6wt%, the copper of 30wt%, 9.6wt%, the tungsten of 1.44wt%, the cobalt of 6.4wt%, the carbon of 0.18wt%, the tungsten carbide of 9.4wt%, the Brown Alundum of 1.4wt%, the graphite of 0.6wt%, with the iron of surplus, and its granularity is 1.0 ~ 10 μm.
Comparative example 2
In this comparative example, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of this comparative example by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 800 DEG C, pressure is 280kgf/cm
2.Wherein, described metallic bond is by the FCP alloyed powder of 98wt%, and the Brown Alundum of 1.4wt% and the graphite of 0.6wt% form.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.The particle diameter of described graphite and Brown Alundum is 1.0 ~ 10 μm.
Comparative example 3
In this comparative example, described laser weld cutting blade is prepared by method of the present invention, specifically, the cutting blade of this comparative example by metallic bond and diamond under vacuum, form through hot pressed sintering, and sintering temperature is 800 DEG C, pressure is 280kgf/cm
2.Wherein, described metallic bond is by the FCP alloyed powder of 55wt%, and the atomized alloy powder composition of surplus.Adamantine concentration is 1.1ct/cm
3, wherein granularity be 35/40 volume account for 30%, granularity be 40/45 volume account for 40%, granularity be 50/60 volume account for 30%.In described FCP alloyed powder, contain following component with its weighing scale: the WC of C, 1.0wt% of Co, 1.0wt% of W, 10wt% of Ni, 8wt% of 20wt%, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill, and particle diameter is 20 ~ 50nm.In described atomized alloy powder, contain with its weighing scale: the tin of the tungsten carbide of 20wt%, the cobalt of 10wt%, 10wt%, the Brown Alundum of 2.8wt%, the graphite of 1.2wt%, and the iron of surplus, particle diameter is 1.0 ~ 10 μm.
The grinding of the diamond cutting abrasive disc of the connection metal flange that embodiment 1-4 and comparative example 1-3 prepares, cutting and cutting life Performance comparision are as shown in table 1.
For the ease of comparing, processing object is identical cement concrete, and obtaining the cutting efficiency of cutting blade and cutting life for benchmark (being namely all labeled as 1) with comparative example 1, other embodiment is as shown in table 1 relative to its multiple with cutting life with the cutting efficiency cutting sheet of comparative example.
Table 1
| Cutting efficiency ratio | Cutting life ratio | |
| Embodiment 1 | 2.11 | 2.03 |
| Embodiment 2 | 2.05 | 1.98 |
| Embodiment 3 | 1.95 | 1.95 |
| Embodiment 4 | 1.91 | 1.90 |
| Comparative example 1 | 1 | 1 |
| Comparative example 2 | 1.85 | 0.65 |
| Comparative example 3 | 1.76 | 0.95 |
For the ordinary skill in the art; specific embodiment is just to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a preparation method for sawtooth two-sided concave U sharp concrete laser weld cutting blade, is prepared by following operation: metallic bond and adamantine batching, granulation-cold pressing-hot pressed sintering-laser weld-put the first edge on a knife or a pair of scissors, polishing, spray paint-test package warehouse-in; It is characterized in that: described diamond segment by metallic bond and diamond under vacuum, forms through hot pressed sintering.
2. preparation method according to claim 1, is characterized in that: sintering temperature is 780 ~ 820 DEG C, and pressure is 250 ~ 300kgf/cm
2.
3. preparation method according to claim 1, is characterized in that: described adamantine concentration is 0.8 ~ 1.1ct/cm
3.
4. preparation method according to claim 3, is characterized in that: described adamantine granularity is 30/35 ~ 45/50.
5. preparation method according to claim 1, is characterized in that: described metallic bond is by FCP alloyed powder, the copper powder of 25 ~ 30wt%, the nickel powder of 6 ~ 8wt% of 18 ~ 20wt%, and the atomized alloy powder composition of surplus.
6. preparation method according to claim 5, is characterized in that: in described atomized alloy powder, contain with its weighing scale: the carbide of 15 ~ 20wt%, the cobalt of 10 ~ 15wt%, the tin of 8 ~ 10wt%, the pore creating material of 3 ~ 5wt%, and the iron of surplus.
7. preparation method according to claim 5, it is characterized in that: in described atomized alloy powder, in described FCP alloyed powder, following component is contained: the Co of the Ni of 15 ~ 20wt%, the W of 8 ~ 10wt%, 10 ~ 12wt%, the C of 1.0 ~ 1.5wt%, the WC of 1.0 ~ 1.2wt% with its weighing scale, and the Fe composition of surplus; And said components is carried out mechanical alloying process and is obtained for 180 ~ 200 hours in ball mill.
8. the preparation method's of a sawtooth two-sided concave U sharp concrete laser weld cutting blade preparation method, comprises the following steps:
1) batching, granulation: according to proportioning, get metallic bond, and add diamond, premix makes molding mass, adopt three-dimensional material mixer batch mixing, then utilize comminutor to carry out granulation and obtain molding mass, particle diameter is 50 ~ 200 μm;
2) cold pressing: adjust moulds of industrial equipment, input molding mass is assembled into extrusion forming in cold_pressing mould and obtains cutting blade base material;
3) hot pressed sintering: cutting blade base is just put into graphite jig, band vacuum environment hot pressed sintering press in carry out pressure sintering, hot pressed sintering temperature at about 800 DEG C, unit pressure 250-300kgf/cm
2;
4) by the cutter head that hot pressed sintering is good, deburring, mill arc is carried out; Together with matrix, on laser welding apparatus, carry out laser weld processing, allow cutter head and matrix link together;
5) polishing, spray paint, put the first edge on a knife or a pair of scissors: the cutting blade that Laser Welding is connected, carry out surface finish, spray varnish, then with grinder buffing, diamond is exposed;
6) inspection, laser marking, pack warehouse-in on request.
9. preparation method according to claim 8, is characterized in that: described cutting blade comprises circular base, and described circular base comprises the first first type surface, second first type surface relative with the first first type surface, and is positioned at the side surface of circumferential edges; What inwardly extend along direction, the circular base center of circle that certain distance formed from described side surface has through multiple chip areas to the first first type surface and the second first type surface, and between adjacent chip area, be formed with diamond segment, described diamond segment has corrugated sawtooth working face, and the diamond cutting face extending to described first first type surface and the second first type surface formed on described sawtooth working face, and described diamond cutting face is formed with U-shaped recess.
10. preparation method according to claim 8, is characterized in that: described metallic bond is by FCP alloyed powder, the copper powder of 25 ~ 30wt%, the nickel powder of 6 ~ 8wt% of 18 ~ 20wt%, and the atomized alloy powder composition of surplus; Described adamantine concentration is 0.8 ~ 1.1ct/cm
3.
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