CN103639908A - Production technology for super-hard CBN grinding tools - Google Patents
Production technology for super-hard CBN grinding tools Download PDFInfo
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- CN103639908A CN103639908A CN201310535641.2A CN201310535641A CN103639908A CN 103639908 A CN103639908 A CN 103639908A CN 201310535641 A CN201310535641 A CN 201310535641A CN 103639908 A CN103639908 A CN 103639908A
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Abstract
The invention provides a production technology for super-hard CBN grinding tools. The production technology includes the following steps that accurate weighing is performed on the following grinding material components including 50-55 parts by weight of resin, 5-10 parts by weight of copper powder, 5-8 parts by weight of solid lubricant, 10-15 parts by weight of potassium titanate whiskers and 25-30 parts by weight of CBN grinding materials, wherein the solid lubricant is composed of molybdenum disulfide and graphite; the grinding materials are placed in a three-dimensional material mixing machine to be mixed; molds are assembled, the mixed grinding materials are evenly placed into the molds, hot pressing is performed on the grinding materials through a press, and the grinding materials are hot-pressed onto turned aluminum alloy base bodies to be shaped to form grinding wheels; the shaped grinding tools are placed in an oven, and post-curing processing is performed on the grinding tools; a lathe is used for machining the aluminum alloy base bodies in a fine mode to enable the aluminum alloy base bodies to reach required sizes, and a grinding machine is used for machining the grinding wheels to enable the grinding wheels to reach required sizes. The CBN grinding tools manufactured through the production technology have the advantages of being long in service life, little in abrasion and stable in size, in the use process, the labor intensity of workers is greatly reduced, and environment is also improved sufficiently.
Description
Technical field
The present invention relates to a kind of production technology of grinding tool, particularly, relate to a kind of production technology of superhard CBN grinding tool.
Background technology
Saw blade is for cutting the general designation of the circular cutter of thin slice of solid material.Saw blade can be divided into: for the diamond saw blade of stone material cutting; HSS sawblade for metal material cutting; Hard alloy saw blade for cuttings such as solid wood, furniture, wood-based plate, aluminium alloy, aluminium section bar, radiator, plastics, plastic-steels.A plurality of parameters such as the kind that hard alloy saw blade comprises alloy cutter head, the material of matrix, diameter, the number of teeth, thickness, profile of tooth, angle, aperture, these parameters are determining working ability and the cutting ability of saw blade.While selecting saw blade, to need to correctly select saw blade according to the direction of the speed of the kind of sawing material, thickness, sawing, sawing, feeding speed, saw kerf width.The kind that carbide alloy is conventional has W-Co kind, tungsten titanium class.Because the carbide alloy impact resistance of W-Co kind is better, in wood working industry, use more extensive.When selecting matrix, 65Mn spring steel elasticity and plasticity are good, material economy, and heat treatment quenching degree is good, and its heating temperature is low, yielding, can be used for requirement and cuts less demanding saw blade; Carbon tool steel carbon containing is high, and thermal conductivity is high, but its hardness and wearability sharply decline while being subject to 200 ℃～250 ℃ of temperature, and heat treatment deformation is large, and quenching degree is poor, and tempering time is long easy to crack.Alloy tool steel is compared with carbon tool steel, heat resistance, and wearability is good, and handling property is better, and heat-resistant deforming temperature is at 300 ℃～400 ℃, the high-grade alloy circular saw blade of suitable manufacture; High-speed tool steel has good quenching degree, and hardness and rigidity are strong, and heat-resistant deforming is few, belongs to unimach, and thermoplasticity is stable, the high-grade ultrathin saw bit of suitable manufacture.
Super-hard abrasive tool is divided into two kinds of diamond abrasive tool and CBN grinding tools (CBN), the former is for the grinding of hard brittle material, the latter is for the grinding of iron content toughness material, at present, woodworking saw blade and diamond saw blade substrate adopt 65 manganese steel or T10, other steel of T12 are through punching press, heat treatment, the operations such as mill processing are made, market consumption is huge, current saw bit matrix manufacturer generally adopts the processing of common white emergy disc sharpener, efficiency is low, emery wheel consumption is large, environmental pollution is serious, labor strength is large, for reality, urgently improve the demand of processing mode, according to actual processing conditions, need to develop a kind of novel super-hard abrasive tool.
Summary of the invention
The production technology that the object of the invention is to overcome the defect of above-mentioned prior art existence and a kind of superhard CBN grinding tool is provided, CBN grinding tool provided by the invention have advantages of long service life, wearing and tearing less, dimensionally stable, and state in the use labor strength in CBN grinding tool process and greatly reduce, environment also obtains and substantially improves.
Object of the present invention is achieved through the following technical solutions, and a kind of production technology of superhard CBN grinding tool, comprises the steps:
Step (1) batching
The accurate following abrasive ingredients of weighing: resin 50～55 weight portions, copper powder 5～10 weight portions, kollag 5～8 weight portions, crystal whisker of hexa potassium titanate 10～15 weight portions, CBN abrasive material (cubic boron nitride abrasive materials) 25～30 weight portions; Described kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 5～8 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould equably, and 180～190 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, formation emery wheel;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Described in lathe fine finishining, alloy matrix aluminum is to requiring size, and grinding machine is processed described emery wheel to requiring size.
Preferably, in step (1), the consumption of each abrasive ingredients is: resin 51～54 weight portions, copper powder 7～9 weight portions, kollag 6～7 weight portions, crystal whisker of hexa potassium titanate 11～14 weight portions, CBN abrasive material 26～29 weight portions.Preferred; In step (1), the consumption of each abrasive ingredients is: resin 52 weight portions, copper powder 8 weight portions, kollag 6.5 weight portions, crystal whisker of hexa potassium titanate 12.5 weight portions, CBN abrasive material 27.5 weight portions.
Preferably, described resin is phenolic resins.
Preferably, in step (3), mixed abrasive material is dropped in mould equably to 185 ℃ of press hot pressing.
Compared with prior art, the present invention has following beneficial effect: in five kinds of material compositions of the present invention, resin, copper powder, kollag, crystal whisker of hexa potassium titanate, CBN abrasive material are by interacting, make CBN grinding tool of the present invention, than common emery wheel, physicochemical change occur in microstructure, increased on the one hand the adhesive strength of the grinding-wheel grinder bed of material, improved the service life of emery wheel, reduced on the other hand the fricative extruding force of emery wheel and matrix, reduce emery wheel abrasion, also improved the service life of emery wheel.Therefore, CBN grinding tool of the present invention have advantages of long service life, wearing and tearing less, product size is stable, and because CBN grinding tool of the present invention is wear-resisting, the dust of generation is few, so labor strength reduces greatly, environmental protection is greatly improved.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
embodiment 1, a kind of superhard CBN grinding tool production technology
A production technology for superhard CBN grinding tool, comprises the steps:
Step (1) batching
Use the following abrasive ingredients of the accurate weighing of electronic balance that sensibility reciprocal is 0.01: phenolic resins 50 weight portions, copper powder 10 weight portions, kollag 5 weight portions, crystal whisker of hexa potassium titanate 15 weight portions, CBN abrasive material 25 weight portions; Kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 5 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould uniformly, and 180 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, the formation grinding-wheel grinder bed of material;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Lathe fine finishining alloy matrix aluminum is to requiring size, and grinding machine processing grinding wheel abrasive material is to requiring size.
embodiment 2, a kind of superhard CBN grinding tool production technology
A production technology for superhard CBN grinding tool, comprises the steps:
Step (1) batching
Use the following abrasive ingredients of the accurate weighing of electronic balance that sensibility reciprocal is 0.01: phenolic resins 51 weight portions, copper powder 9 weight portions, kollag 6 weight portions, crystal whisker of hexa potassium titanate 14 weight portions, CBN abrasive material 26 weight portions; Kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 6 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould uniformly, and 180 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, the formation grinding-wheel grinder bed of material;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Lathe fine finishining alloy matrix aluminum is to requiring size, and grinding machine processing grinding wheel abrasive material is to requiring size.
embodiment 3, a kind of superhard CBN grinding tool production technology
A production technology for superhard CBN grinding tool, comprises the steps:
Step (1) batching
Use the following abrasive ingredients of the accurate weighing of electronic balance that sensibility reciprocal is 0.01: phenolic resins 52 weight portions, copper powder 8 weight portions, kollag 6.5 weight portions, crystal whisker of hexa potassium titanate 12.5 weight portions, CBN abrasive material 27.5 weight portions; Kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 7 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould uniformly, and 185 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, the formation grinding-wheel grinder bed of material;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Lathe fine finishining alloy matrix aluminum is to requiring size, and grinding machine processing grinding wheel abrasive material is to requiring size.
embodiment 4, a kind of superhard CBN grinding tool production technology
A production technology for superhard CBN grinding tool, comprises the steps:
Step (1) batching
Use the following abrasive ingredients of the accurate weighing of electronic balance that sensibility reciprocal is 0.01: phenolic resins 54 weight portions, copper powder 7 weight portions, kollag 7 weight portions, crystal whisker of hexa potassium titanate 11 weight portions, CBN abrasive material 29 weight portions; Kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 8 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould uniformly, and 190 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, the formation grinding-wheel grinder bed of material;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Lathe fine finishining alloy matrix aluminum is to requiring size, and grinding machine processing grinding wheel abrasive material is to requiring size.
embodiment 5, a kind of superhard CBN grinding tool production technology
A production technology for superhard CBN grinding tool, comprises the steps:
Step (1) batching
Use the following abrasive ingredients of the accurate weighing of electronic balance that sensibility reciprocal is 0.01: phenolic resins 55 weight portions, copper powder 5 weight portions, kollag 8 weight portions, crystal whisker of hexa potassium titanate 10 weight portions, CBN abrasive material 30 weight portions; Kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 5 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould uniformly, and 190 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, the formation grinding-wheel grinder bed of material;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Lathe fine finishining alloy matrix aluminum is to requiring size, and grinding machine processing grinding wheel abrasive material is to requiring size.
the evaluation of implementation result
The CBN grinding tool of above-described embodiment 1 to 5 acquisition and plain wheel are carried out to the detection of long service life, wearing and tearing and dimensional stability according to conventional method, testing result is as shown in table 1.
Table 1
As shown in Table 1, compare with plain wheel, the emery wheel of CBN grinding tool of the present invention uses about 90 days, and plain wheel is used about 2～3 days, and therefore, CBN grinding tool of the present invention has advantages of long service life; 5～10 of the each feeds of plain wheel; 2 microns of the each feeds of emery wheel of CBN grinding tool of the present invention; therefore; CBN grinding tool of the present invention have advantages of wearing and tearing less, product size is stable; and because CBN grinding tool of the present invention is wear-resisting; the dust producing is few, so labor strength reduces greatly, and environmental protection is greatly improved.
Why can produce above-mentioned advantage, its principle is as follows by analysis: five kinds of material compositions of the present invention (resin, copper powder, kollag, crystal whisker of hexa potassium titanate, CBN abrasive material) make the emery wheel of CBN grinding tool of the present invention, than common emery wheel, physicochemical change occur in microstructure by interaction, increased on the one hand the adhesive strength of the grinding-wheel grinder bed of material, improved the service life of emery wheel, reduced on the other hand the fricative extruding force of emery wheel and matrix, reduce emery wheel abrasion, improved the service life of emery wheel.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. a production technology for superhard CBN grinding tool, is characterized in that, comprises the steps:
Step (1) batching
The accurate following abrasive ingredients of weighing: resin 50～55 weight portions, copper powder 5～10 weight portions, kollag 5～8 weight portions, crystal whisker of hexa potassium titanate 10～15 weight portions, CBN abrasive material 25～30 weight portions; Described kollag is comprised of molybdenum bisuphide and graphite;
Step (2) batch mixing
Above-mentioned abrasive material is put into three-dimensional material mixer to be mixed 5～8 hours;
Step (3) moulding
Assembling mould, drops into mixed abrasive material in mould equably, and 180～190 ℃ of press hot pressing are hot-pressed onto moulding on the alloy matrix aluminum that car makes abrasive material, formation emery wheel;
Step (4) heat treatment
The grinding tool of above-mentioned forming is put into and in baking oven, carries out rear curing processing;
Step (5) post processing
Described in lathe fine finishining, alloy matrix aluminum is to requiring size, and grinding machine is processed described emery wheel to requiring size.
2. the production technology of superhard CBN grinding tool as claimed in claim 1, it is characterized in that, in step (1), the consumption of each abrasive ingredients is: resin 51～54 weight portions, copper powder 7～9 weight portions, kollag 6～7 weight portions, crystal whisker of hexa potassium titanate 11～14 weight portions, CBN abrasive material 26～29 weight portions.
3. the production technology of superhard CBN grinding tool as claimed in claim 2, is characterized in that, in step (1), the consumption of each abrasive ingredients is: resin 52 weight portions, copper powder 8 weight portions, kollag 6.5 weight portions, crystal whisker of hexa potassium titanate 12.5 weight portions, CBN abrasive material 27.5 weight portions.
4. the production technology of superhard CBN grinding tool as claimed in claim 1, is characterized in that, described resin is phenolic resins.
5. the production technology of superhard CBN grinding tool as claimed in claim 1, is characterized in that, in step (3), mixed abrasive material is dropped in mould equably to 185 ℃ of press hot pressing.
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Cited By (6)
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| CN104308755A (en) * | 2014-10-21 | 2015-01-28 | 苏州赛力精密工具有限公司 | Resin CBN (cubic boron nitride) grinding wheel for machining saw blade base body |
| CN104493731A (en) * | 2014-12-18 | 2015-04-08 | 广东奔朗新材料股份有限公司 | Super-hard material grinding apparatus using calcium sulfate whisker as binding agent and preparation method thereof |
| CN104647225A (en) * | 2015-02-02 | 2015-05-27 | 郑州磨料磨具磨削研究所有限公司 | Cubic boron nitride grinding wheel and manufacturing method for cubic boron nitride grinding wheel |
| CN105269471A (en) * | 2015-10-22 | 2016-01-27 | 蓝思科技（长沙）有限公司 | Resin grinding tool for processing glass or ceramic |
| CN105598859A (en) * | 2015-12-31 | 2016-05-25 | 苏州赛力精密工具有限公司 | Large-pore CBN grinding wheel for machining sliding vanes of compressor |
| CN112873069A (en) * | 2019-04-17 | 2021-06-01 | 江苏赛扬精工科技有限责任公司 | Preparation method of high-self-sharpening superhard grinding wheel special for piston ring ladder grinding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308755A (en) * | 2014-10-21 | 2015-01-28 | 苏州赛力精密工具有限公司 | Resin CBN (cubic boron nitride) grinding wheel for machining saw blade base body |
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| CN105598859A (en) * | 2015-12-31 | 2016-05-25 | 苏州赛力精密工具有限公司 | Large-pore CBN grinding wheel for machining sliding vanes of compressor |
| CN112873069A (en) * | 2019-04-17 | 2021-06-01 | 江苏赛扬精工科技有限责任公司 | Preparation method of high-self-sharpening superhard grinding wheel special for piston ring ladder grinding |
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