CN106242537A - 一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 - Google Patents
一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 Download PDFInfo
- Publication number
- CN106242537A CN106242537A CN201610727999.9A CN201610727999A CN106242537A CN 106242537 A CN106242537 A CN 106242537A CN 201610727999 A CN201610727999 A CN 201610727999A CN 106242537 A CN106242537 A CN 106242537A
- Authority
- CN
- China
- Prior art keywords
- abrasive particle
- alundum abrasive
- alundum
- lamellar
- content
- 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.)
- Pending
Links
- 239000002245 particle Substances 0.000 title claims abstract description 87
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000227 grinding Methods 0.000 title abstract description 21
- 229910052751 metal Inorganic materials 0.000 title abstract description 12
- 239000002184 metal Substances 0.000 title abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 8
- 235000015895 biscuits Nutrition 0.000 claims abstract description 7
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 7
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 7
- RSEIMSPAXMNYFJ-UHFFFAOYSA-N europium(III) oxide Inorganic materials O=[Eu]O[Eu]=O RSEIMSPAXMNYFJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 7
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 7
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 6
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 6
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims abstract description 6
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 15
- 229910052594 sapphire Inorganic materials 0.000 claims description 13
- 229940057995 liquid paraffin Drugs 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000006259 organic additive Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000005498 polishing Methods 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910001651 emery Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3227—Lanthanum oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3262—Manganese oxides, manganates, rhenium oxides or oxide-forming salts thereof, e.g. MnO
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
本发明公开了一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法，其原料组成重量百分比为：α‑Al2O3含量98‑99.5％wt；SiO2 0.1～0.5％wt；MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合，含量0.3‑1.0％wt；稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，含量0.1～0.5％wt；按照原料组成重量百分比加入各种原料后，再加入助剂进行混合，利用模压或者挤出的方式生产素坯，然后在烧结炉中1550‑1700℃烧结。烧结后形成α‑Al2O3致密均匀的微晶结构。产品具有较高的密度和硬度。能够解决常规磨粒在重负荷领域的磨削效率低、易老化等问题。并且通过挤压或者模压的方法可以制成各种形状的薄片状磨粒，可以应用于金属磨削领域。
Description
技术领域
本发明涉及一种烧结刚玉磨粒，用于重负荷打磨及金属磨削领域，尤其涉及的是一种重负荷磨削用烧结刚玉磨粒及其生产方法。
背景技术
实际工业生产中有各种负荷下的磨削，重负荷打磨主要是钢坯的修磨，磨除钢锭表面缺陷层；大型铸件锻件的加工；切割片、打磨片切割或者打磨金属也是一种带负荷磨削。
常规的重负荷打磨使用的是用铝矾土烧结而成的磨粒，硬度不够；仅能用来磨削不锈钢等较软的材料。并且由于磨粒中杂质含量较高，在高温条件下会迅速老化。
因此，现有技术存在缺陷，需要改进。
发明内容
针对现有技术的不足提供一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法。
本发明采用如下技术方案：
一种烧结刚玉磨粒，其原料组成重量百分比为：α-Al2O3含量98-99.5％wt；SiO20.1～0.5％wt；MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合，含量0.3-1.0％wt；稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，含量0.1～0.5％wt。
其配方中包括α-Al2O3含量98-99.5％wt，α-Al2O3作为主晶相；SiO2含量0.1～0.5％，SiO2的加入主要是在高温下与α-Al2O3形成莫来石相，增加整个微晶结构的高温下的强度；MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合，含量0.3-1.0％wt，MnO等氧化物的加入主要是与α-Al2O3形成固溶体，存在与晶界上，抑制α-Al2O3的晶粒长大。稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，含量0.1～0.5％wt，稀土氧化物的加入是作为大颗粒存在于α-Al2O3的晶界上，防止晶粒的异常长大及抑制晶界缺陷的扩展，增加产品的韧性，微观晶相结构如图1所示。通过以上添加剂的作用，产品的物理特性可以达到，密度大于3.74g/mm3，硬度HV大于1400kg/mm2。
所述的烧结刚玉磨粒，其密度大于3.74g/mm3,硬度HV大于1400kg/mm2。
所述的烧结刚玉磨粒，其中α-Al2O3以粉体形式的加入，粉体粒径1-5um。
所述的烧结刚玉磨粒，包括条状烧结刚玉磨粒和片状烧结刚玉磨粒，其中条状烧结刚玉磨粒包括圆柱型烧结刚玉磨粒、三叶草型烧结刚玉磨粒、圆环条型烧结刚玉磨粒；所述的圆柱型烧结刚玉磨粒，其横截面为圆形，长度和直径的比值是1.5到5；所述的三叶草型烧结刚玉磨粒，其横截面为外圆内切三个对称的大小相同的内圆，三个内圆相互外切，长度和直径的比值是1.5到5；所述的圆环条型烧结刚玉磨粒，其横截面为圆环，其内径和外径比值为1/4到3/4，长度和直径的比值是1.5到5；
片状烧结刚玉磨粒包括三角形片状烧结刚玉磨粒和六角形片状烧结刚玉磨粒，所述的三角型片状烧结刚玉磨粒，其横截面为等边三角形，其厚度是边长的1/10到1/2；所述的六角形片状烧结刚玉磨粒，其横截面为六角形，其厚度为边长的1/10到1/2。
一种任一所述烧结刚玉磨粒的生产方法，按照原料组成重量百分比加入各种原料后，再加入助剂进行混合，利用模压或者挤出的方式生产素坯，然后在烧结炉中1550-1700℃烧结。
所述的生产方法，其中助剂是指为改善粉体成型性能加入的有机助剂，含量占所述原料重量之和的百分比为：液体石蜡5-10％wt；硬脂酸0.5-1.0％wt。
所述的生产方法，其中混合是将各种原材料及助剂通过机械搅拌的方式混合；其中模压是通过轧辊将搅拌后的粉体挤入模腔，其中挤压是通过螺杆将搅拌后的粉体挤入模腔。
所述的生产方法，其中烧结是将成型后的素坯，在窑炉中1550-1700℃烧结60-200分钟。
本发明解决了常规磨粒磨削效率低，磨粒易老化的问题。本发明专利以氧化铝微粉为主要原料，添加MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合,稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，通过烧结的方法制成的磨粒。添加的氧化物的作用是降低氧化铝的烧结温度,抑制晶粒的长大。烧结后形成α-Al2O3致密均匀的微晶结构。产品具有较高的密度和硬度。能够解决常规磨粒在重负荷领域的磨削效率低，易老化等问题。并且通过挤压或者模压的方法可以制成各种形状的薄片状磨粒，可以应用于金属磨削领域。
附图说明
图1为本发明磨粒晶相结构图；1，α-Al2O3晶粒，2，稀土氧化物，3，MnO2等固溶体晶界；
图2为圆柱型磨粒示意图(左)及实物图(右)；
图3为三叶草型磨粒示意图(左)及实物图(右)；
图4为圆环条型磨粒示意图(左)及实物图(右)；
图5为三角型磨粒示意图(左)及实物图(右)；
图6为六角型磨粒示意图(左)及实物图(右)。
具体实施方式
以下结合具体实施例，对本发明进行详细说明。
实施例1配方试验及产品的物理特性
烧结刚玉磨粒，其原料组成重量百分比为：α-Al2O3含量98-99.5％wt；SiO20.1～0.5％wt；MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合，含量0.3-1.0％wt；稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，含量0.1～0.5％wt；
还添加有助剂，助剂是指为改善粉体成型性能加入的有机助剂，含量为上述原料重量之和的百分比：液体石蜡5-10％wt；硬脂酸0.5-1.0％wt。
所述的烧结刚玉磨粒的形状有条状和片状两类，其中条状是圆柱型(图2)、三叶草型(图3)、圆环条型(图4)。与树脂结合剂混合后模压成砂轮，主要应用于重负荷打磨领域。圆柱型的优点是强度高，不易磨损，但是与树脂结合剂的接触面积小，结合力不够，容易脱落。三叶草型和圆环条型，增大了与树脂结合剂的接触面积，结合力好，磨粒不容易从砂轮脱落。并且三叶草型和圆环条型，在磨削过程中与被磨工件接触面积小，磨粒会层层剥落，自锐性好，磨削效率高。
以下是条状磨粒的特征描述：所述的圆柱型烧结刚玉磨粒，其横截面为圆形，长度和直径的比值是1.5到5。所述的三叶草型烧结刚玉磨粒，其横截面为外圆内切三个对称的大小相同的内圆，三个内圆相互外切，长度和直径的比值是1.5到5。所述的圆环条型烧结刚玉磨粒，其横截面为圆环，其特征为内径和外径比值为1/4到3/4，长度和直径的比值是1.5到5。
片状的磨粒主要包含三角形片状，和六角形片状，主要应用于金属切割及打磨领域的树脂切割片及打磨片。由于磨粒本身比较薄，易于做成较薄的切割片/打磨片。并且三角型磨粒或者六角型磨粒的棱边、尖角会显著的提升切削效率。
以下是片状磨粒的特征描述：
所述的三角型烧结刚玉磨粒，横截面为等边三角形，其特征为厚度是边长的1/10到1/2。所述的六角型烧结刚玉磨粒，横截面为六角形，其特征为厚度为边长的1/10到1/2。
根据上述配方进行如下表1所示的具体实验：
表1
将α-Al2O3粉末、SiO2粉末、MnO等氧化物粉末、Eu2O3等稀土氧化物粉末按照上表配方称量，然后再高速混料机中混合30分钟。将混合好的粉料投入捏合机，并且按上表配方加入液体石蜡和硬脂酸镁，捏合30分钟。将捏合好的物料投入对辊挤压机或者螺杆挤出机，匹配不同形状的模具，挤压出不同形状的素坯。将素坯静置12小时，然后进入烧结炉在1700℃烧结100分钟即可得到需要的磨粒。用硬度计和密度计测量烧结后磨粒的密度和硬度，结果如上表所示。
实施例2磨粒重负荷下打磨钢坯试验
将上述配方的做成条状颗粒磨粒用树脂结合剂制作成厚度76mm砂轮，进行磨削试验。试验条件：砂轮线速度80m/s，负荷1000Kgf。试验结果如下表2所示：
表2
| 砂轮编号 | 磨粒形状 | 配方编号 | 工件磨削量(g) | 砂轮损耗量(g) | 磨耗比 |
| 1 | 圆柱型 | 1 | 2802 | 400 | 7.0 |
| 2 | 三叶草型 | 1 | 3695 | 493 | 7.5 |
| 3 | 空心圆条 | 1 | 3599 | 467 | 7.7 |
| 4 | 圆柱型 | 2 | 2703 | 398 | 6.8 |
| 5 | 三叶草型 | 2 | 3254 | 452 | 7.2 |
| 6 | 空心圆条 | 2 | 3301 | 452 | 7.3 |
| 7 | 圆柱型 | 3 | 2794 | 405 | 6.9 |
| 8 | 三叶草型 | 3 | 3255 | 465 | 7.0 |
| 9 | 空心圆条 | 3 | 3289 | 463 | 7.1 |
从表1可以看出本发明的磨削效率均比较好。
实施例3片状磨粒的金属切割试验
将实施例1中生产的三角型磨粒和六角形磨粒加入树脂结合剂和玻纤增强网片，制作成厚度1.0切割片，进行切割试验。切割线速度80m/s,试验素材Φ16#45钢棒。
表3
从表3可以看出本发明中磨粒的切割效率和寿命均比较好。
实施例4片状磨粒的金属打磨试验
将实施例1中生产的三角型磨粒和六角形磨粒加入树脂结合剂和玻纤增强网片，制作成厚度3.0打磨片，进行金属打磨试验。试验素材#45钢，打磨机功率720W，转速11000RPM，打磨素材#45钢，打磨时间10分钟。
表4
从表4可以看出本发明中磨粒的磨削效率比较好。
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。
Claims (8)
1.一种烧结刚玉磨粒，其特征在于，其原料组成重量百分比为：α-Al2O3含量98-99.5％wt；SiO2 0.1～0.5％wt；MnO、Fe2O3、MgO、Cr2O3中的一种或者几种的组合，含量0.3-1.0％wt；稀土氧化物Eu2O3，La2O3，Y2O3中的一种或几种的组合，含量0.1～0.5％wt。
2.根据权利要求1所述的烧结刚玉磨粒，其特征在于，所述烧结刚玉磨粒的密度大于3.74g/mm3,硬度HV大于1400kg/mm2。
3.根据权利要求1所述的烧结刚玉磨粒，其特征在于，其中α-Al2O3以粉体形式的加入，粉体粒径1-5um。
4.根据权利要求1所述的烧结刚玉磨粒，其特征在于，所述的烧结刚玉磨粒包括条状烧结刚玉磨粒和片状烧结刚玉磨粒，其中条状烧结刚玉磨粒包括圆柱型烧结刚玉磨粒、三叶草型烧结刚玉磨粒、圆环条型烧结刚玉磨粒；所述的圆柱型烧结刚玉磨粒，其横截面为圆形，长度和直径的比值是1.5到5；所述的三叶草型烧结刚玉磨粒，其横截面为外圆内切三个对称的大小相同的内圆，三个内圆相互外切，长度和直径的比值是1.5到5；所述的圆环条型烧结刚玉磨粒，其横截面为圆环，其内径和外径比值为1/4到3/4，长度和直径的比值是1.5到5；
片状烧结刚玉磨粒包括三角形片状烧结刚玉磨粒和六角形片状烧结刚玉磨粒，所述的三角型片状烧结刚玉磨粒，其横截面为等边三角形，其厚度是边长的1/10到1/2；所述的六角形片状烧结刚玉磨粒，其横截面为六角形，其厚度为边长的1/10到1/2。
5.一种权利要求1-4任一所述烧结刚玉磨粒的生产方法，其特征在于，按照原料组成重量百分比加入各种原料后，再加入助剂进行混合，利用模压或者挤出的方式生产素坯，然后在烧结炉中1550-1700℃烧结。
6.根据权利要求5中所述的生产方法，其特征在于，其中助剂是指为改善粉体成型性能加入的有机助剂，含量占所述原料重量之和的百分比为：液体石蜡5-10％wt；硬脂酸0.5-1.0％wt。
7.根据权利要求5中所述的生产方法，其特征在于，其中混合是将各种原材料及助剂通过机械搅拌的方式混合；其中模压是通过轧辊将搅拌后的粉体挤入模腔，其中挤压是通过螺杆将搅拌后的粉体挤入模腔。
8.根据权利要求5中所述的生产方法，其特征在于，其中烧结是将成型后的素坯，在窑炉中1550-1700℃烧结60-200分钟。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727999.9A CN106242537A (zh) | 2016-08-25 | 2016-08-25 | 一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727999.9A CN106242537A (zh) | 2016-08-25 | 2016-08-25 | 一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106242537A true CN106242537A (zh) | 2016-12-21 |
Family
ID=57596112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610727999.9A Pending CN106242537A (zh) | 2016-08-25 | 2016-08-25 | 一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106242537A (zh) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522474A (zh) * | 2017-08-23 | 2017-12-29 | 上海雨荣新材料科技有限公司 | 纳米晶烧结刚玉磨粒及其制备方法 |
| CN111136589A (zh) * | 2019-12-30 | 2020-05-12 | 宁波大学 | 一种磨粒晶界结合固着磨具及其制备方法 |
| EP3957618A1 (de) * | 2020-08-21 | 2022-02-23 | Ivoclar Vivadent AG | Aluminiumoxid-keramikmaterial |
| CN116477966A (zh) * | 2023-04-26 | 2023-07-25 | 深圳市博迪科技开发有限公司 | 一种不掉粉的羟基磷灰石基多孔陶瓷的制备方法 |
| CN116768608A (zh) * | 2023-07-13 | 2023-09-19 | 郑州蚂蚁特材有限公司 | 一种半脆刚玉及其制备方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134692A (zh) * | 1993-11-12 | 1996-10-30 | 美国3M公司 | 磨料颗粒及其制造方法 |
| CN1165124A (zh) * | 1996-02-13 | 1997-11-19 | 尼卡特株式会社 | 耐磨性氧化铝陶瓷及其制造方法 |
| CN101117284A (zh) * | 2007-07-13 | 2008-02-06 | 北京中材人工晶体有限公司 | 一种氧化铝陶瓷及其制备方法 |
| CN101247911A (zh) * | 2005-07-16 | 2008-08-20 | 研磨剂与耐火品研究与开发中心C.A.R.R.D.有限公司 | 基于α-氧化铝的纳米结晶的烧结体、其制备方法及其用途 |
| CN103232229A (zh) * | 2013-05-13 | 2013-08-07 | 景德镇百特威尔新材料有限公司 | 一种超耐磨氧化铝陶瓷球及其制备方法 |
-
2016
- 2016-08-25 CN CN201610727999.9A patent/CN106242537A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134692A (zh) * | 1993-11-12 | 1996-10-30 | 美国3M公司 | 磨料颗粒及其制造方法 |
| CN1165124A (zh) * | 1996-02-13 | 1997-11-19 | 尼卡特株式会社 | 耐磨性氧化铝陶瓷及其制造方法 |
| CN101247911A (zh) * | 2005-07-16 | 2008-08-20 | 研磨剂与耐火品研究与开发中心C.A.R.R.D.有限公司 | 基于α-氧化铝的纳米结晶的烧结体、其制备方法及其用途 |
| CN101117284A (zh) * | 2007-07-13 | 2008-02-06 | 北京中材人工晶体有限公司 | 一种氧化铝陶瓷及其制备方法 |
| CN103232229A (zh) * | 2013-05-13 | 2013-08-07 | 景德镇百特威尔新材料有限公司 | 一种超耐磨氧化铝陶瓷球及其制备方法 |
Non-Patent Citations (1)
| Title |
|---|
| 王成彪 等: "《摩擦学材料及表面工程》", 29 February 2012, 国防工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107522474A (zh) * | 2017-08-23 | 2017-12-29 | 上海雨荣新材料科技有限公司 | 纳米晶烧结刚玉磨粒及其制备方法 |
| CN111136589A (zh) * | 2019-12-30 | 2020-05-12 | 宁波大学 | 一种磨粒晶界结合固着磨具及其制备方法 |
| EP3957618A1 (de) * | 2020-08-21 | 2022-02-23 | Ivoclar Vivadent AG | Aluminiumoxid-keramikmaterial |
| US12202774B2 (en) | 2020-08-21 | 2025-01-21 | Ivoclar Vivadent Ag | Aluminium oxide ceramic material |
| CN116477966A (zh) * | 2023-04-26 | 2023-07-25 | 深圳市博迪科技开发有限公司 | 一种不掉粉的羟基磷灰石基多孔陶瓷的制备方法 |
| CN116477966B (zh) * | 2023-04-26 | 2024-08-06 | 深圳市博迪科技开发有限公司 | 一种不掉粉的羟基磷灰石基多孔陶瓷的制备方法 |
| CN116768608A (zh) * | 2023-07-13 | 2023-09-19 | 郑州蚂蚁特材有限公司 | 一种半脆刚玉及其制备方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106242537A (zh) | 一种重负荷砂轮及金属磨削用烧结刚玉磨粒及生产方法 | |
| CN105252435B (zh) | 一种微晶玻璃陶瓷结合剂及其制备方法，sg砂轮及其制备方法 | |
| CN103709993B (zh) | 一种自锐性金刚石磨料及其制备方法 | |
| CN102811951B (zh) | 基于熔融氧化铝的多晶Al2O3体 | |
| KR101226420B1 (ko) | 용융 구체 코런덤에 기재한 연마 입자 | |
| GB2033360A (en) | Alumina abrasive grains | |
| CN103465179A (zh) | 一种树脂粗磨砂轮及其制备方法 | |
| CN106041760B (zh) | 一种自锐性金刚石砂轮及其制备方法 | |
| CN107522474B (zh) | 纳米晶烧结刚玉磨粒及其制备方法 | |
| US11179828B2 (en) | Additive raw material composition and additive for superhard material product, preparation method of the additive, composite binding agent and superhard material product, self-sharpening diamond grinding wheel and preparation method of the same | |
| DE2420551A1 (de) | Verfahren zur herstellung von gekoernten schleifmitteln aus erschmolzenen oder gesinterten hochfeuerfesten anorganischen hartstoffen mit hoher kornzaehigkeit | |
| JP2014507509A (ja) | α−アルミナ研磨材及びその調製方法 | |
| CN104439253B (zh) | 一种高精度硬质合金小圆刀加工工艺 | |
| CN103465180A (zh) | 一种薄片树脂砂轮及其制备方法 | |
| CN102398229A (zh) | 磨削聚晶金刚石刀具用陶瓷结合剂金刚石砂轮 | |
| CN103878555A (zh) | 立方晶氮化硼基超高压烧结材料制表面包覆切削工具 | |
| CN105014553B (zh) | 一种具有高强磨削性能的陶瓷微晶砂轮及其制造方法 | |
| CN103658638A (zh) | 一种加工不锈钢的硬质合金立铣刀用棒材的制备方法 | |
| CN110125820A (zh) | 一种金刚石磨盘及其制备方法 | |
| CN110000714B (zh) | 一种大直径超薄树脂切割砂轮及其制备方法 | |
| CN106625198B (zh) | 含氧化锆的复合型超硬珩磨油石及其制备方法 | |
| CN108972382B (zh) | 一种涂附磨具用多层磨料及其制备方法和涂附磨具 | |
| KR100270238B1 (ko) | 고압주입이장용 조성물, 고압주입이장 및 이들의 조제방법 | |
| CN107364010B (zh) | 双面烧结w型槽金刚石工具及其制备方法 | |
| CN103898388A (zh) | 一种高性能超细晶硬质合金新材料分条分切刀 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
|
| RJ01 | Rejection of invention patent application after publication |