专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2543565B2 失效
公开(公告)号：JP2543565B2
公开(公告)日：1996-10-16
申请号：JP7644588
申请日：1988-03-31
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , OGURA HIROHARU , MYAHARA KAZUHIRO
IPC分类号： C04B35/638 , C04B33/32 , C04B35/64 , C04B38/00 , F27B9/12 , F27B9/20 , F27B9/30

2. 发明专利

JPH02255576A METHOD FOR CALCINING CERAMICS HONEYCOMB STRUCTURAL BODY 失效
公开(公告)号：JPH02255576A
公开(公告)日：1990-10-16
申请号：JP7482589
申请日：1989-03-29
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , NAKAYOKU KAZUO , MIYAHARA KAZUHIRO , WADA YUKIHISA
IPC分类号： B01D53/86 , C04B35/195 , C04B35/64 , C04B38/00
摘要： PURPOSE:To obtain a sintered article of a required size by specifying calcination conditions at the time of calcining the honeycomb structural body obtd. by extrusion molding of the compd. of ceramics raw materials forming cordierite. CONSTITUTION:The chemical compsn. of the essential components consists, by weight, of 42 to 56% SiO2, 30 to 45% Al2O3, and 12 to 16% MgO. Talc, kaolin, and other cordierite forming raw materials are so mixed that the essential components of the crystal phase consist of the cordierite. These materials are mixed and kneaded and a molding assistant and/or molding agent is added to the mixture prepd. in such a manner. The mixture is then plasticized extrudably and is extrusion-molded to the honeycomb structural body. The resulting honeycomb structural body is calcined by controlling the heating up temp. at the time of calcination to

3. 发明专利

JPH0240019B2 失效
公开(公告)号：JPH0240019B2
公开(公告)日：1990-09-10
申请号：JP3371486
申请日：1986-02-20
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , MYAHARA KAZUHIRO
IPC分类号： C04B35/64 , F27D3/12

4. 发明专利

JP2553192B2 失效
公开(公告)号：JP2553192B2
公开(公告)日：1996-11-13
申请号：JP7482589
申请日：1989-03-29
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , NAKAYOKU KAZUO , MYAHARA KAZUHIRO , WADA YUKIHISA
IPC分类号： B01D53/86 , C04B35/195 , C04B35/64 , C04B38/00

5. 发明专利

JPH0154636B2 失效
公开(公告)号：JPH0154636B2
公开(公告)日：1989-11-20
申请号：JP3371586
申请日：1986-02-20
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , MYAHARA KAZUHIRO
IPC分类号： F27D3/12

6. 发明专利

JPH01249665A METHOD FOR CALCINING CERAMIC AND TUNNEL KILN USED THEREFOR 失效
公开(公告)号：JPH01249665A
公开(公告)日：1989-10-04
申请号：JP7644588
申请日：1988-03-31
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , OGURA HIROHARU , MIYAHARA KAZUHIRO
IPC分类号： C04B35/638 , C04B33/32 , C04B35/64 , C04B38/00 , F27B9/12 , F27B9/20 , F27B9/30
摘要： PURPOSE:To prevent the cracking and deformation in calcination by making the heating rate of a ceramic molded body to the decomposition temp. of a molding aid slower than that from the decomposition temp. to the sintering temp. CONSTITUTION:A molding aid consisting of a binder such as methylcellulose, CMC, and PVA and a lubricant such as a surfactant and wax is added to the raw material of talc, kaolin, and alumina to obtain a body which is extrusion-molded. In this case, a preheating zone 1, a calcining zone 2, and a remaining-heat zone 3 are provided, a combustion gas exhaust fan 4 is furnished at the low-temp. part on the inlet side of the preheating zone 1, and a high-temp. gas exhaust fan 5 is provided at the high- temp. part on the outlet side of the preheating zone 1 to constitute a tunnel kiln. The combustion gas generated from a burner 6 in the calcining zone 2 is sucked by the exhaust fan of the preheating zone 1 to generate a combustion gas current. The desired amt. of the hightemp. gas is sucked and exhausted by the exhaust fan 5 at the midway of the current to make the heating rate to the decomposition temp. of the molding aid lower than that from the decomposition temp. to the sintering temp., and the body is preheated, then sent to the calcining zone, and sintered.

7. 发明专利

JPS62252886A JAPANESE HORSE-CHESNUT AND USAGE THEREOF 失效
公开(公告)号：JPS62252886A
公开(公告)日：1987-11-04
申请号：JP3371586
申请日：1986-02-20
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , MIYAHARA KAZUHIRO
IPC分类号： F27D3/12

8. 发明专利

JPS62202870A METHOD OF BURNING CERAMIC HONEYCOMB STRUCTURE 失效
公开(公告)号：JPS62202870A
公开(公告)日：1987-09-07
申请号：JP3371486
申请日：1986-02-20
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , MIYAHARA KAZUHIRO
IPC分类号： C04B35/64 , F27D3/12

9. 发明专利

JPH03279775A SHELF OF FIRING FURNACE 失效
公开(公告)号：JPH03279775A
公开(公告)日：1991-12-10
申请号：JP7560390
申请日：1990-03-27
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , TANIGAWA GENICHI , WADA YUKIHISA
IPC分类号： F27B3/02 , C04B33/32 , F27D3/12
摘要： PURPOSE:To improve workability in shelf assemblying operation and restrict projection of shelf plats when horizontal settings of shelf plates are carried out by a method wherein a some plates of clay material and of a honeycomb structure are disposed at connecting locations between shelf plates disposed in a horizontal direction and the supporting columns for supporting the shelf plates from a vertical direction in respect to a plane of the shelf plates. CONSTITUTION:Supporting columns 8 are mounted on one shelf plate 7a, and the other shelf plate 7b is mounted on the supporting columns 8. In this case, the shelf plate 7b is held horizontal in respect to the shelf plate 7a. Due to this fact, in order to set a horizontal orientation, a load is applied between the supporting column 8 and the shelf plate 7b and then a plate member 10 which can be compressed is disposed. A load is applied from above the shelf plate 7b and the plate 10 is compressed to be broken, lateral inclination of the shelf plate is adjusted to make a horizontal setting of it. Since the compressed plate material 10 is of a honeycomb structure, its cells are broken and walls forming the cells are overlapped to each other while several deformed clearances being left and then an irregular layer is formed. In this way, since the broken pieces of the plate member 10 enter the cells when the plate material 10 is broken, so that a part of the plate material 10 is prevented from being widely projected out of the side of the supporting columns 8 under compressed state of the plate material 10.

10. 发明专利

JPH01246179A METHOD FOR CALCINING CERAMICS AND CALCINING TOOL USED THEREFOR 失效
公开(公告)号：JPH01246179A
公开(公告)日：1989-10-02
申请号：JP7346388
申请日：1988-03-29
申请人： NGK INSULATORS LTD
发明人： YASUDA KEIJI , YAMAGUCHI MASABUMI , MIYAHARA KAZUHIRO
IPC分类号： C04B33/32 , C04B35/64 , C04B38/00 , F27B9/26 , F27B9/30 , F27D5/00 , F27D99/00
摘要： PURPOSE:To obtain a product without dispersion in quality by providing shielding units on carts so as to prevent jetting streams of a combustion gas from directly contacting compacts and then installing passages for the jetting streams of the combustion gas in placing the compacts on the carts and calcining the compacts with the combustion gas. CONSTITUTION:Plural carts (12a) and (12b) are movably arranged in a tunnel kiln provided with burners (16a) and (16b) and shelves for carrying ceramic compacts 14 are provided on the carts. Shielding units 22 are simultaneously installed so as to prevent jetting streams of a combustion gas from directly contacting the ceramic compacts 14. Ceramic honeycomb structures, etc., having the obliquely divided intermediate parts are preferred as the shielding units 22. Passages 31 for the jetting streams of the combustion gas are further formed between the carts (12a) and (12b). The ceramic compacts 14 are then placed on the carts (12a) and (12b) and uniformly calcined with the combustion gas from the burners (16a) and (16b).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式