发明名称 |
Sikt og fremgangsmåte for fremstilling av sikt |
摘要 |
A pulp screening assembly where each support ring is weldlessly bonded to a perforate screen section by a bonding material that preferably is a brazing material. There is a joint between each ring and a screen section in which brazing material is disposed. The joint includes at least one set of mating faying surfaces that are offset relative to a longitudinal axis of the screening assembly. In a preferred embodiment, there is a tolerance between mated faying surfaces of no greater than 0.008 inches to ensure a good weldless bond is achieved. In another preferred embodiment, the tolerance is no greater than 0.004 inches. A weldless screen basket is produced having end rings, a plurality of slotted screen sections, and an intermediate ring having slots with back grooves within four millimeters of a ring at each end increasing screening open area. |
申请公布号 |
NO20030364(D0) |
申请公布日期 |
2003.01.23 |
申请号 |
NO20030000364 |
申请日期 |
2003.01.23 |
申请人 |
J&L FIBER SERVICES INC |
发明人 |
LUTZ, MARK S;CROMELL, TIM J |
分类号 |
B01D29/11;B01D33/00;B07B1/18;D21D5/16 |
主分类号 |
B01D29/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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