CN103567892A - Special ultrathin-sheet grinding wheel for stainless steel and preparation method - Google Patents

Special ultrathin-sheet grinding wheel for stainless steel and preparation method Download PDF

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Publication number
CN103567892A
CN103567892A CN201310530258.8A CN201310530258A CN103567892A CN 103567892 A CN103567892 A CN 103567892A CN 201310530258 A CN201310530258 A CN 201310530258A CN 103567892 A CN103567892 A CN 103567892A
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preparation
stainless steel
abrasive material
black corundum
special
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CN201310530258.8A
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CN103567892B (en
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王素娟
章锡国
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YANGQUAN ZHONGJIA ABRASIVES CO Ltd
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YANGQUAN ZHONGJIA ABRASIVES CO Ltd
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Abstract

The invention discloses a special ultrathin-sheet grinding wheel for stainless steel and a preparation method. A slag bank and ferric oxide slag (the mass ratio of (4-6):1) are taken as main raw materials and melted in an electric-arc furnace at a high temperature, so that a black fused alumina abrasive material is produced; the abrasive material is taken as a matrix for producing the special grinding wheel for the stainless steel; the industrial waste bauxite slag bank requires Al2O3 which is larger than or equal to 70% (wt%) and comprises other components of Fe2O3, SiO2, CaO, MgO and the balance of impurities; the ferric oxide slag comprises the components of Fe2O3, Fe3O4, FeO and impurities, wherein the content of the Fe2O3 is required to be 50%-60% (wt%); black fused alumina is taken as the abrasive material, and a proper quantity of an additive is added for mixing; a reinforcing material layer is arranged on one side of the manufactured grinding wheel; a cutting material is arranged on the other side of the reinforcing material layer and is high in grinding and cutting efficiency and good in tenacity and self-sharpening performance; and little heat is emitted during grinding and cutting, and a workpiece burning phenomenon cannot be caused easily when the stainless steel is cut.

Description

The special-purpose superthin section emery wheel of stainless steel and preparation method
Technical field
The present invention relates to a kind of grinding tool that utilizes extremely low-grade resource and resource of tailings to prepare the method for grinding tool and utilize the method to prepare.Be specifically related to the preparation method of the special-purpose superthin section emery wheel of a kind of stainless steel, and the emery wheel prepared of the method.
Technical background
Domestic resin abrasive tools manufacturing enterprise adopts low cost strategy mostly, no matter product quality falling cost, fall selling price simply only; The real type that reduces costs new product is with lower cost in fact, the resin abrasive tools of same performance is provided, mainly refer to and utilize new science and technology, improvement of production process or enhance productivity, cut down the cost of original product but keep the constant new product of original function, so much for domestic most grinding materials and grinding tool enterprise, research and development new product aspect drops into limitedly, more work is placed on stabilized product quality, and this just forms vicious circle.Due to product unstable, market is more difficult does, and more there is no fund research and development new product.This cost strategy is a double-edged sword, and on the one hand in low-end market, unexpectedly to strive power large for product, and product quality is also indefinite because excessively pursuing the low-cost fluctuating that becomes on the other hand, if market has large variation will inevitably have influence on the final and decisive juncture of enterprise.
At present, the primary raw material of domestic production grinding tool is all to take the higher abrasive material of aluminum content that white fused alumina is main raw material(s), and the primary raw material of smelting white fused alumina is aluminium oxide, the raw material of producing aluminium oxide are dense form bauxites, scarcity day by day along with bauxite resource, the price of white fused alumina also day by day increases, and causes the production cost of resin abrasive tools manufacturing enterprise constantly to increase.In addition, the emery wheel made from white fused alumina exists that grinding efficiency is low, poor toughness, self-sharpening are poor, the easy problem of burn workpiece when cutting stainless steel.
Summary of the invention
The object of the invention is to overcome the cost existing in prior art high, the problem of poor performance, propose a kind ofly to take trade waste bauxite slag bank material and oxidation scum and prepare black corundum abrasive material as primary raw material, and then prepare the preparation method of the special-purpose superthin section emery wheel of stainless steel and a kind of emery wheel that utilizes the method to prepare.
The technological process of stainless steel special grinding wheel is:
Black corundum abrasive material preparation----batch mixing--compacting--sclerosis--quality inspection--packing of granulating.
Wherein black corundum preparation is: raw material is added to smelting furnace, smelt; Described raw material comprises trade waste bauxite slag bank material and the oxidation scum of the ratio of mass ratio 4-6:1.The Al of described trade waste bauxite slag bank material 2o 3>=70% (wt%), other composition is Fe 2o 3, SiO 2, the impurity of CaO and MgO and surplus.Described iron oxide slag ingredient is Fe 2o 3, Fe 3o 4, FeO and impurity, wherein, Fe 2o 3content is required to be 50%～60% (wt%).Smelting temperature 1900-2500 degree Celsius, smelting cycle 19 hours, cooling discharging after smelting cycle.After the broken classification of sorting, obtain black corundum abrasive material.
Described black corundum abrasive material is with Al 2o 3with hercynite be the grey black crystalline solid of main ore deposit phase.Al in described black corundum abrasive material 2o 3mass content be 75%～85% (wt%), Fe 2o 3content is 9%-12% (wt%), SiO 2mass content be≤10% (wt%); Preferred Al 2o 3mass content be 81～85% (wt%); Preferred Fe 2o 3content is 9-11% (wt%); Preferred SiO 2mass content be≤8% (wt%).Hardness>=9.0 of black corundum (Mohs' hardness), density>=3.50g/cm 3.
Described smelting adopts electric smelting furnace.
Black corundum abrasive material after broken classification is mixed through granularity, and with wetting agent, bonding agent, inserts mixes.
Described wetting agent is liquid phenolic resin.
Described bonding agent is that nano-titanium oxide strengthens phenolic resins or nano-titanium oxide reinforced epoxy.
Described bonding agent is Powdered.
Described mixing adopts three-dimensional mixer.
Described mixing adopts two pot batch mixing methods.
Mixed material is placed more than 12 hours, so that the auxiliary materials such as inserts, bonding agent can fully mix with black corundum.
The material fully mixing is compressing.The coded shape of bonded abrasive tool mould therefor is according to the regulation of GB/T2484, and basic size is according to the regulation of GB/T4127.
During compacting, adopt the glass grid cloth that infiltrated nano-titanium oxide reinforced epoxy bonding agent as reinforcing material.
Emery wheel after compressing enters the kiln drying-reaction of electric tunnel and solidifies 35 hours.
The qualified rear packing of finished product quality inspection.
The present invention take slag bank material and oxidation scum to be that primary raw material makes black corundum abrasive material, take it for matrix production stainless steel special grinding wheel; Choose novel nano TiO 2reinforced epoxy is as binding agent; Can either continually improve environment, can realize again the recycling of waste material, walk out a recycling economy Sustainable Development Road.
The special-purpose superthin section emery wheel of stainless steel that the present invention produces, its grinding efficiency is high, good toughness, self-sharpening is good, it is little to generate heat during grinding, is difficult for causing workpiece burn phenomenon aspect cutting stainless steel.More than product operating speed reaches 120 meter per seconds.
The specific embodiment
Embodiment 1
To comprise that the trade waste bauxite slag bank material of mass ratio 4:1 ratio and the raw material of oxidation scum add smelting furnace, adopt electric smelting furnace to smelt.Described trade waste bauxite slag bank material needs Al 2o 3>=70% (wt%), other composition is Fe 2o 3, SiO 2, the impurity of CaO and MgO and surplus.Described iron oxide slag ingredient is Fe 2o 3, Fe 3o 4, FeO and impurity, wherein, Fe 2o 3content is 50% (wt%).2000 degrees Celsius of smelting temperatures, smelting cycle 19 hours, cooling discharging after smelting cycle.After the broken classification of sorting, obtain black corundum abrasive material.
Described black corundum abrasive material is with Al 2o 3with hercynite be the grey black crystalline solid of main ore deposit phase.Al in described black corundum abrasive material 2o 3mass content be 75% (wt%), Fe 2o 3content is 11% (wt%), SiO 2mass content be 8% (wt%); The hardness of black corundum is 9.0 (Mohs' hardness), and density is 3.50g/cm 3.
Black corundum abrasive material after broken classification is mixed through granularity, and with wetting agent, bonding agent, inserts adopts two pot batch mixing methods to mix.
Mixed material is placed 12 hours, so that the auxiliary materials such as inserts, bonding agent can fully mix with black corundum.
Employing infiltrated the glass grid cloth of nano-titanium oxide reinforced epoxy bonding agent as reinforcing material, and the material fully mixing is compressing.The coded shape of bonded abrasive tool mould therefor is according to the regulation of GB/T2484, and basic size is according to the regulation of GB/T4127.
Emery wheel after compressing enters the kiln drying-reaction of electric tunnel and solidifies 35 hours.
The qualified rear packing of finished product quality inspection.
Embodiment 2
To comprise that the trade waste bauxite slag bank material of mass ratio 5:1 ratio and the raw material of oxidation scum add smelting furnace, adopt electric smelting furnace to smelt.Described trade waste bauxite slag bank material needs Al 2o 3>=70% (wt%), other composition is Fe 2o 3, SiO 2, the impurity of CaO and MgO and surplus.Described iron oxide slag ingredient is Fe 2o 3, Fe 3o 4, FeO and impurity, wherein, Fe 2o 3content is 55% (wt%).2000 degrees Celsius of smelting temperatures, smelting cycle 19 hours, cooling discharging after smelting cycle.After the broken classification of sorting, obtain black corundum abrasive material.
Described black corundum abrasive material is with Al 2o 3with hercynite be the grey black crystalline solid of main ore deposit phase.A1 in described black corundum abrasive material 2o 3mass content be 8l% (wt%), Fe 2o 3content is 10% (wt%), SiO 2mass content be 7% (wt%); The hardness of black corundum is 9.1 (Mohs' hardness), and density is 3.50g/cm 3.
Black corundum abrasive material after broken classification is mixed through granularity, and with wetting agent, bonding agent, inserts adopts two pot batch mixing methods to mix.
Mixed material is placed 12 hours, so that the auxiliary materials such as inserts, bonding agent can fully mix with black corundum.
Employing infiltrated the glass grid cloth of nano-titanium oxide reinforced epoxy bonding agent as reinforcing material, and the material fully mixing is compressing.The coded shape of bonded abrasive tool mould therefor is according to the regulation of GB/T2484, and basic size is according to the regulation of GB/T4127.
Emery wheel after compressing enters the kiln drying-reaction of electric tunnel and solidifies 35 hours.
The qualified rear packing of finished product quality inspection.
Embodiment 3
To comprise that the trade waste bauxite slag bank material of mass ratio 6:1 ratio and the raw material of oxidation scum add smelting furnace, adopt electric smelting furnace to smelt.Described trade waste bauxite slag bank material needs Al 2o 3>=70% (wt%), other composition is Fe 2o 3, SiO 2, the impurity of CaO and MgO and surplus.Described iron oxide slag ingredient is Fe 2o 3, Fe 3o 4, FeO and impurity, wherein, Fe 2o 3content is 55% (wt%).2200 degrees Celsius of smelting temperatures, smelting cycle 19 hours, cooling discharging after smelting cycle.After the broken classification of sorting, obtain black corundum abrasive material.
Described black corundum abrasive material is with Al 2o 3with hercynite be the grey black crystalline solid of main ore deposit phase.Al in described black corundum abrasive material 2o 3mass content be 85% (wt%), Fe 2o 3content is 9% (wt%), SiO 2mass content be 8% (wt%); The hardness of black corundum is 9.2 (Mohs' hardness), and density is 3.51g/cm 3.
Black corundum abrasive material after broken classification is mixed through granularity, and with wetting agent, bonding agent, inserts adopts two pot batch mixing methods to mix.
Mixed material is placed 12 hours, so that the auxiliary materials such as inserts, bonding agent can fully mix with black corundum.
Employing infiltrated the glass grid cloth of nano-titanium oxide reinforced epoxy bonding agent as reinforcing material, and the material fully mixing is compressing.The coded shape of bonded abrasive tool mould therefor is according to the regulation of GB/T2484, and basic size is according to the regulation of GB/T4127.
Emery wheel after compressing enters the kiln drying-reaction of electric tunnel and solidifies 35 hours.
The qualified rear packing of finished product quality inspection.
Should be understood that, above-mentioned embodiment is also not interpreted as any restriction to protection domain of the present invention, and it is only specific description implementation process of the present invention.

Claims (10)

1. a preparation method for the special-purpose superthin section emery wheel of stainless steel, is characterized in that the technological process of the special-purpose superthin section emery wheel of this stainless steel is:
Black corundum abrasive material preparation-granulation-batch mixing-compacting-sclerosis-quality inspection-packing:
Wherein black corundum preparation is: will comprise that the trade waste bauxite slag bank material of mass ratio 4-6:1 and the raw material of oxidation scum add smelting furnace to smelt;
Described trade waste bauxite slag bank material needs Al 2o 3>=70% (wt%), other composition is Fe 2o 3, SiO 2, the impurity of CaO and MgO and surplus;
Described iron oxide slag ingredient is Fe 2o 3, Fe 3o 4, FeO and impurity, wherein, Fe 2o 3content is required to be 50%～60% (wt%);
Described smelting temperature is 1900-2500 degree Celsius, smelting cycle 15-25 hour, cooling discharging after smelting cycle; After the broken classification of sorting, obtain black corundum abrasive material; Described black corundum abrasive material is with Al 2o 3with hercynite be the grey black crystalline solid of main ore deposit phase; Al in described black corundum abrasive material 2o 3mass content be 75%～85% (wt%), Fe 2o 3content is 9%-12% (wt%), SiO 2mass content be≤10% (wt%); Hardness>=9.0 of black corundum (Mohs' hardness), density>=3.50g/cm 3;
Wherein batch mixing is: the black corundum abrasive material after broken classification is mixed through granularity, and with wetting agent, bonding agent, inserts mixes;
Consolidation and sclerosis after the repressed moulding of compound, obtains the special-purpose superthin section emery wheel of stainless steel;
The qualified rear packing of quality inspection.
2. preparation method claimed in claim 1, wherein said smelting adopts electric smelting furnace.
3. the preparation method described in claim 1 or 2, wherein said wetting agent is liquid phenolic resin, described bonding agent is that nano-titanium oxide strengthens phenolic resins or nano-titanium oxide reinforced epoxy.
4. the preparation method described in any one in claim 1-3, wherein said bonding agent is Powdered.
5. the preparation method described in any one in claim 1-4, wherein said mixing adopts two pot batch mixing methods.
6. the preparation method described in any one in claim 1-5, wherein mixed material is placed more than 12 hours, so that the auxiliary materials such as inserts, bonding agent can fully mix with black corundum.
7. the preparation method described in any one in claim 1-6, adopts the glass grid cloth that infiltrated nano-titanium oxide reinforced epoxy bonding agent as reinforcing material while wherein suppressing.
8. the preparation method described in any one in claim 1-7, enters the kiln drying-reaction of electric tunnel after wherein compressing and solidifies 35 hours.
9. the special-purpose superthin section emery wheel of stainless steel that in claim 1-8, the method for any one prepares, more than its operating speed reaches 120 meter per seconds.
10. emery wheel claimed in claim 9, wherein Al in black corundum abrasive material 2o 3mass content be 81～85% (wt%); Fe 2o 3content is 9-11% (wt%); SiO 2mass content be≤8% (wt%).
CN201310530258.8A 2013-11-01 2013-11-01 Rustless steel special superthin section emery wheel and preparation method Active CN103567892B (en)

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Publication number Priority date Publication date Assignee Title
CN105081993A (en) * 2015-07-16 2015-11-25 郑州磨料磨具磨削研究所有限公司 Resin-bonded cubic boron nitride (CBN) cut-in grinding wheel and manufacturing process thereof
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CN106891271A (en) * 2017-04-22 2017-06-27 河南工业大学 A kind of stainless steel cut emery wheel and preparation method thereof
CN106891271B (en) * 2017-04-22 2019-05-07 河南工业大学 A kind of stainless steel cut grinding wheel and preparation method thereof
CN107322499A (en) * 2017-07-23 2017-11-07 阳泉市中嘉磨料磨具有限公司 Phenolic resin cutting sheet and the preparation technology of grinding
CN108857938A (en) * 2018-07-02 2018-11-23 河南烨达新材科技股份有限公司 A kind of black corundum buffing wheel and preparation method thereof
CN113277837A (en) * 2021-06-25 2021-08-20 河南烨达新材科技股份有限公司 Preparation method of high-performance black corundum abrasive

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