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1. 发明专利

JPH0559259A IMPREGNATING LIQUID FOR POROUS GRINDSTONE 失效
公开(公告)号：JPH0559259A
公开(公告)日：1993-03-09
申请号：JP1742292
申请日：1992-01-04
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/32 , C08K5/07 , C08L61/04 , C08L61/06
摘要： PURPOSE:To obtain an impregnating liquid to be used for production of a grindstone excellent in water resistance, grinding properties and lapping properties by incorporating thereinto a phenolic resin, PVA, an aldehyde and an acid catalyst. CONSTITUTION:The title liquid contains (A) a phenolic resin, (B) PVA, (C) an aldehyde (e.g. acetaldehyde), and (D) an acid catalyst (e.g. hydrochloric acid or p-toluenesulfonic acid). The amt. of the component B is 5-95 pts.wt. based 100 pts.wt. component A, while the amt. of the component C is 5-10 pts.wt. based on 100 pts.wt. component B. The impregnating liquid has a good affinity for a grindstone, as different from conventional impregnating liquid contg. only a phenolic resin, to cause no unevenness. As a result, the final product is uniform in hardness, water resistance, etc., and undergoes no cracking during heating.

2. 发明专利

JPS59142069A Preparation of porous grindstone and immersion liquid thereof 失效
标题翻译：多孔磨石及其浸出液的制备
公开(公告)号：JPS59142069A
公开(公告)日：1984-08-15
申请号：JP1151583
申请日：1983-01-28
申请人： Noritake Co Ltd
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/28 , B24D3/30 , B24D3/32
CPC分类号： B24D3/32
摘要： PURPOSE:To improve the water resistance, grinding performance, and lapping performance of the captioned grindstone by using the combination of PVA, aldehyde, and acid, as the phenol-resin containing immersion liquid for a porous grindstone which is fixedly molded, thus improving the affinity with a PVA bond grindstone. CONSTITUTION:A proper kind of PVA is used for grindstone bonding agent, and 5-95parts PVA by weight is used for 100parts phenol-resin by weight. Aldehyde group is necessary in 20-80pts.wt. with respect to 100parts. PVA by weitht. Acidic catalyst is hydrochloric acid, sulfuric acid, etc., and 5-10pts.wt. is required for 100parts PVA by weight. The grindstone is immersed into said immersion liquid and then dried, and heat-treated at 40-130 deg.C for formal reaction and phenol-resin condensation, and further heat-treated at 130-200 deg.C for several hours for hardening. Thus, the grindstone which is uniform and free from irregularity can be prepared without forming crack during heating. Moreover, a grindstone having the superior water resistance, strength, grinding performance, abrasion proofness, and the good lapping performance can be obtained.
摘要翻译：目的：通过使用PVA，醛和酸的组合提高标题磨石的耐水性，研磨性能和研磨性能，作为固体成型用的多孔磨石的含酚树脂浸渍液，从而改善了与PVA粘结磨石的亲和力。构成：用于研磨粘合剂的适当种类的PVA，以重量计为100份的酚醛树脂使用5-95重量份的PVA。醛类是20-80pts.wt。相对于100件。 PVA由weitht。酸性催化剂为盐酸，硫酸等，5-10pts.wt。是100重量份的PVA。将磨石浸入所述浸渍液中，然后干燥，并在40-130℃下进行热处理，进行正式反应和酚醛树脂缩合，并进一步在130-200℃热处理几小时进行硬化。因此，可以在加热期间制备均匀且无凹凸的磨石，而不会形成裂纹。此外，可以获得具有优异的耐水性，强度，研磨性能，耐磨性和良好研磨性能的磨石。

3. 发明专利

JPH0559260A RESIN-IMPREGNATING SOLUTION FOR POROUS GRINDSTONE 失效
公开(公告)号：JPH0559260A
公开(公告)日：1993-03-09
申请号：JP35812391
申请日：1991-12-27
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/32 , C08L61/20 , C08L61/28
摘要： PURPOSE:To obtain the title soln. capable of giving a high-strength grindstone increased in grinding properties while keeping lapping properties by blending at least one of a melamine resin soln. and a urea resin soln. with a liquid phenolic resin and a condensation catalyst. CONSTITUTION:At least one member (A) of a melamine resin soln. and a urea resin soln. is blended with a liquid phenolic resin (B) and a condensation catalyst (C) (e.g. hydrochloric acid or p-toluenesulfonic acid) at an A to B blending ratio of 1:10 to 10:1 to obtain an impregnating soln., with which an elastic porous base grindstone molded and solidified is impregnated to prepare a porous grindstone impregnated with a heat-reactive resin. The obtained grindstone undergoes no cracking during heat treatment to give a final product remarkably improved in strength and water resistance and further improved in grinding properties and abrasion resistance while keeping a considerable level of lapping properties.

4. 发明专利

JPS59205268A Resin impregnated porous grinding wheel and impregnating liquid 失效
标题翻译：树脂浸渍多孔砂轮和浸渍液
公开(公告)号：JPS59205268A
公开(公告)日：1984-11-20
申请号：JP7909583
申请日：1983-05-06
申请人： Noritake Co Ltd
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： C09K3/14 , B24D3/28 , B24D3/32
CPC分类号： B24D3/28
摘要： PURPOSE:To improve the cutting performance while maintaining the wrapping performance, by impregnating a molded porous basic grindstone with melamine resin liquid, urea resin liquid, liquid phenol resin and condensation catalyst thereafter drying and thermally hardening. CONSTITUTION:Melamine resin is initial condensation product or its induced product of melamine and aldehyde while liquid phenol resin is low molecular condensation product of various phenol such as phenol, xylenol, cresol, resol, etc. and various aldehyde or its induced product and the condensation catalyst is acid, alkali or their inorganic salt. Consequently conventional uneven coating, uneven hardening and crack can be prevented and in case of melamine resin/ phenol resin, urea resin/phenol resin or combination of three kind of resins, liquid component will never separate to enable uniform coating while versatility is provided after drying of impregnated liquid to solve cracking during thermal processing.
摘要翻译：目的：为了提高切割性能，同时保持包装性能，通过浸渍具有三聚氰胺树脂液体，脲醛树脂液体，液体酚醛树脂和缩合催化剂的成型多孔基础砂轮干燥和热硬化。构成：三聚氰胺树脂是三聚氰胺和醛的初始缩合产物或其诱导产物，而液体酚醛树脂是各种苯酚，如苯酚，二甲苯酚，甲酚，甲阶酚醛树脂等各种低分子缩合产物和各种醛或其诱导产品，催化剂是酸，碱或其无机盐。因此，可以防止常规的不均匀涂布，不均匀的硬化和裂纹，并且在三聚氰胺树脂/酚醛树脂，尿素树脂/酚醛树脂或三种树脂的组合的情况下，液体组分将永远不会分离，从而能够均匀地涂布，同时在干燥后提供通用性的浸渍液体，以解决热加工过程中的裂纹。

5. 发明专利

JPH068377B2 失效
公开(公告)号：JPH068377B2
公开(公告)日：1994-02-02
申请号：JP1742292
申请日：1992-01-04
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： B24D3/32 , C08K5/07 , C08L61/04 , C08L61/06

6. 发明专利

JPH05187B2 失效
公开(公告)号：JPH05187B2
公开(公告)日：1993-01-05
申请号：JP7909583
申请日：1983-05-06
申请人： NORITAKE CO LTD
发明人： INADA HIROSHI , KOBAYASHI MICHIO
IPC分类号： C09K3/14 , B24D3/28 , B24D3/32

7. 发明专利

JPH01153275A ELASTIC RESIN BOND GRINDING STONE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH01153275A
公开(公告)日：1989-06-15
申请号：JP31215087
申请日：1987-12-11
申请人： NORITAKE CO LTD
发明人： KOBAYASHI MICHIO
IPC分类号： B24D3/28 , B24D3/00
摘要： PURPOSE:To enhance mechanical strength, bonding strength of bond and abrasive grains and wear and abrasion resistance keeping elasticity by using elastic resin bond as binder made of specific copolymer mainly. CONSTITUTION:Olefinic vinyl alcoholic copolymer is dissolved in mixed solvent comprising water and alcohol. In the next step, abrasive grains, aldehyde and filler are mixed in this copolymer solution and stirred. This mixture is added by acid, heated and reacted for a given time and acetalized. The resulting solid is rinsed, dried and then applied heat treatment. Thus, a desired elastic resin bond grinding stone is obtained. The grinding stone manufactured in such way is suitable for grinding a cemented carbide or ceramic workpiece or precision grinding in particular.

8. 发明专利

JPS6377659A PRODUCTION OF FLEXIBLE PVAC GRINDSTONE 失效
公开(公告)号：JPS6377659A
公开(公告)日：1988-04-07
申请号：JP22436686
申请日：1986-09-22
申请人： NORITAKE CO LTD
发明人： KOBAYASHI MICHIO , NAGASAKI HIDEO
IPC分类号： B24D3/28 , B24D3/00 , B24D5/04
摘要： PURPOSE:To obtain a flexible grindstone and increase the rupture strength by pinching glass fibers pre-processed with phenol resin with sheet-shaped semi- products combined with abrasive grains using PVAc (polyvinyl acetal resin) as a binder and heating and pressing and fixing them together. CONSTITUTION:Abrasive grains are combined by PVAc to mold a sheet-shaped semi-product. Glass fibers 12 pre-processed with phenol resin is pinched from both sides by these sheet-shaped semi-products 10, they are heated at the temperature of about 80 deg.C-150 deg.C under this condition and pinched by molds to perform the pressurized pressing. Thereby, a PVAc grindstone 14 fixed together is produced. Accordingly, the grindstone 14 is excellent in flexibility, and breakdown due to deformation rarely occurs.

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