CN1007222B - Compound abrasive grinding wheel for grinding titanium alloy - Google Patents

Compound abrasive grinding wheel for grinding titanium alloy

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Publication number
CN1007222B
CN1007222B CN 85103038 CN85103038A CN1007222B CN 1007222 B CN1007222 B CN 1007222B CN 85103038 CN85103038 CN 85103038 CN 85103038 A CN85103038 A CN 85103038A CN 1007222 B CN1007222 B CN 1007222B
Authority
CN
China
Prior art keywords
grinding
grinding wheel
emery wheel
fused alumina
improved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CN 85103038
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Chinese (zh)
Other versions
CN85103038A (en
Inventor
李建豪
鲍弋正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southeast University
Original Assignee
Southeast University
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Filing date
Publication date
Application filed by Southeast University filed Critical Southeast University
Priority to CN 85103038 priority Critical patent/CN1007222B/en
Publication of CN85103038A publication Critical patent/CN85103038A/en
Publication of CN1007222B publication Critical patent/CN1007222B/en
Expired legal-status Critical Current

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Abstract

The present invention relates to a grinding tool which belongs to the technical field of mechanical manufacture. The grinding tool has the advantages of certain self-sharpening performance, good grinding performance and low grinding temperature; a grinding wheel is not easy to clog, and the grinding wheel does not need to be repaired frequently. The production rate can be improved by more than two times, the smoothness can be improved by one to two stages, and the durability of the grinding wheel can be improved by more than three stages; the disadvantages of burn, etc. on a workpiece surface are relieved, and the surface quality is improved. The versatility of the grinding wheel is large, the grinding wheel can be used for grinding materials, such as stainless steel, heat-resistant alloy, etc., and the effect is good.

Description

Compound abrasive grinding wheel for grinding titanium alloy
The invention belongs to the grinding tool in the machine-building.
According to present prior art, when grinding titanium alloy, no special grinding wheel, general all is the emery wheel made from single conventional abrasive material, the abrasive material of wherein using more generally is the emery wheel that green silicon carbide or white alumina are made, with this kind wheel grinding titanium alloy, following defective appears often, and emery wheel stops up easily during grinding; Grinding trembling often appears; Phenomenons such as grinding sound.So emery wheel needs often finishing.And high temperature often appears in grinding points, and cause burned work-surface, crackle, the product distortion, grinding ratio is hanged down inferior phenomenon.Grinding efficiency is low, of poor quality, and grinding fineness generally can only reach 6~
Figure 85103038_IMG2
7.
The objective of the invention is, at the above-mentioned shortcoming , And of existing emery wheel when the grinding titanium alloy according to titanium alloy high-temperature intensity height, the toughness height, characteristics such as sclerosis trend is strong propose a kind ofly to make with compound abrasive and suitable bond, are applicable to the emery wheel of grinding titanium alloy material.To improve grinding quality and efficient.
Technical solution of the present invention is: adopt green silicon carbide, microcrystal fused alumina and pink fused alumina are as compound abrasive.This is because green silicon carbide grinding hardness height have good cutting ability, but its fragility is also higher.Carborundum crystals its difference in hardness on different crystal plane direction is also bigger.And microcrystal fused alumina grinding crystal is less, the toughness height, excellent cutting performance, from sharp be to split along the slit of crystallite, unlikely bulk or the whole abrasive material of causing comes off, this to reduce grinding heat and emery wheel stop up with loss all be favourable.The fragility of rose grain is moderate, has good cutting ability, and grinding fineness is higher.Above-mentioned three kinds of abrasive materials have different thermal coefficient of expansions, emery wheel fuse with cooling procedure in, the bond bridge produces micro-crack, thereby has improved the self-sharpening energy of emery wheel.Preparation compound abrasive essence is a kind of simple hardening and tempering method.
The used abrasive material percentage by weight of this emery wheel is: green silicon carbide 70~80%, microcrystal fused alumina 15~20%, pink fused alumina 5~10%.
Above-mentioned three kinds of abrasive materials are adopted different granularities, make the thickness abrasive particle have the effect of mutual filling.Make emery wheel because the micro-crack that the bond bridge produces compensates the precision stability when having improved grinding to some extent.The abrasive grain that this emery wheel is used: friendly silicon carbide grinding materials is No. 80 granularities; The microcrystal fused alumina abrasive material is No. 60 granularities, and rose grain is No. 60 granularities.
This emery wheel adopts feldspar, and clay, boron glass are as bond, its percentage is by weight: feldspar 60~70%, clay 25~35%, boron glass 5~10%, add waterglass then, dextrine powder, the ratio between the methyl liquid, it and abrasive material bond is: the weight in compound abrasive is 100%, the bond that then above-mentioned three kinds of materials are formed is 10~14%, waterglass 3~4%, dextrine powder 2~3%, methyl liquid 2~3%.Through batch mixing, moulding, drying, at the tunnel roasting in kilns with 36 meters long of town gas, maximum temperature is 1300 ℃~1350 ℃, firing time is 85~95 hours, the new emery wheel of development.
This emery wheel has following characteristics when grinding titanium alloy:
1) self-sharpening of emery wheel and cutting ability are better, and after once repairing, through roughly grinding 8 hours continuously, emery wheel does not still have the blunt phenomenon, does not stop up yet.
2) during this wheel grinding titanium alloy, can reduce grinding temperature, avoid the burn of surface of the work, defectives such as crackle have improved grinding surface quality.Grinding fineness improves 1~2 grade than general wheel grinding.
3) this emery wheel is compared price with general emery wheel and is only improved 30%, and productivity ratio can improve more than 2 times, and the durability of emery wheel improves more than 3 times.
4) this emery wheel not only can be roughly ground, and can also finish grind after meticulous finishing, can keep the good grinding precision.And the grinding applicability is wider, and it also is suitable for materials such as grinding stainless steel, heat-resisting alloy.
The specific embodiment of the invention:
This emery wheel adopts green silicon carbide, microcrystal fused alumina, and rose grain, percentage by weight is: friendly silicon carbide grinding materials 70~80%, microcrystal fused alumina 15~20%, pink fused alumina 5~10%.The granularity of abrasive material is respectively: friendly silicon carbide grinding materials, select granularity for use No. 80, and microcrystal fused alumina is No. 60 granularities, pink fused alumina is No. 60 granularities.The bond that adding is made up of feldspar, clay, boron glass, percentage by weight is: feldspar 60~70%, clay 25~35%, boron glass 5~10%.Weight according to abrasive material is 100% then, and bond is 10~14% calculating, adds 3~4% waterglass, 2~3% dextrine powder, 2~3% methyl liquid.Carry out batch mixing on 50 kilograms of reverse-flow batch mixers, the time is 2.5~3.5 minutes.Go up at special oil press (100~500 tons) then and decide bulk forming.Baking temperature is 75 °~85 ℃, and be 35~40 hours drying time.Enter 36 meters long tunnel caves, carry out roasting with town gas, the highest sintering temperature is 1300 °~1350 ℃, and roasting time is 85~95 hours.On the special machine bed, carry out end face again, outer garden, aperture processing.

Claims (2)

1, a kind of compound abrasive grinding wheel is characterized in that:
A, this emery wheel adopt green silicon carbide, microcrystal fused alumina, and three kinds of abrasive materials of pink fused alumina mix, and its weight proportion is that friendly silicon carbide grinding materials is 70~80%, and microcrystal fused alumina is 15~20%, and pink fused alumina is 5~10%, its granularity is respectively No. 80, and No. 60, No. 60.
The bond of b, this emery wheel is made up of feldspar, clay, boron glass, and its ratio is a feldspar 60~70%, clay 25~35%, boron glass 5~10%.
2, compound abrasive grinding wheel according to claim 1 is characterized in that: the weight of abrasive material is 100% when batch mixing, and bond is 10~14%, also adds waterglass 3~4% in addition, dextrine powder 2-3%, methyl liquid 2~3%.
CN 85103038 1985-04-10 1985-04-10 Compound abrasive grinding wheel for grinding titanium alloy Expired CN1007222B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 85103038 CN1007222B (en) 1985-04-10 1985-04-10 Compound abrasive grinding wheel for grinding titanium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 85103038 CN1007222B (en) 1985-04-10 1985-04-10 Compound abrasive grinding wheel for grinding titanium alloy

Publications (2)

Publication Number Publication Date
CN85103038A CN85103038A (en) 1986-10-08
CN1007222B true CN1007222B (en) 1990-03-21

Family

ID=4792938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 85103038 Expired CN1007222B (en) 1985-04-10 1985-04-10 Compound abrasive grinding wheel for grinding titanium alloy

Country Status (1)

Country Link
CN (1) CN1007222B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102363286B (en) * 2011-03-01 2013-08-28 江苏华辰磨料磨具有限公司 Steel blank grinding abrasion wheel adopting microcrystal ceramic bonding agents
CN104526580A (en) * 2014-12-15 2015-04-22 江苏苏北砂轮厂有限公司 Microcrystal ceramic grinding wheel
CN104526590A (en) * 2014-12-23 2015-04-22 常熟市巨力砂轮有限责任公司 Method for manufacturing double-face recessed conical grinding wheel
CN106607770B (en) * 2015-10-27 2018-08-17 南京诺之瑞思商贸有限公司 A kind of preparation method of microcrystal fused alumina Ceramic mill disc
CN108115559A (en) * 2017-12-18 2018-06-05 中国航发贵州黎阳航空动力有限公司 A kind of grinding processing method of titanium alloy component

Also Published As

Publication number Publication date
CN85103038A (en) 1986-10-08

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