2results about How to "Uniform width" patented technology

The application discloses a kind of synergic circulation pressure relief sintering regulation tungsten nickel iron binder phase distribution method, comprising the following steps: taking raw material and mixing according to mass percentage;Mixed raw material is loaded into mould, is placed in discharge plasma sintering equipment, and is sintered under vacuum or inert atmosphere condition;5~20MPa pre-pressure is applied in room temperature to first temperature interval heating process;When mould temperature rises to 1000~1280 DEG C, implement low-frequency stage formula circulation pressure relief-recompression procedure;Subsequently, the pressure is adjusted to 30~65MPa, and is kept at 1300~1500 DEG C for 2~12 min, then cooling, to get fine-grained tungsten nickel iron alloy.The application uses stage formula circulation pressure relief-recompression sintering method, promotes Ni-Fe binder phase repeated redistribution;Reduce the probability of local Ni-Fe binder phase over-wide enrichment and continuous binder phase pool formation;Increase the uniformity of Ni-Fe binder phase width distribution, improve organization consistency;It is favorable to simultaneously improve strength and plastic toughness matching.

An assembly for producing a one-sided laminated corrugated board web, comprising a first corrugating roller (6) and a second corrugating roller (8) for producing a corrugated web (4). It further comprises a glue application device (14) for applying glue to the crests of the corrugated web (4) and a pressure belt arrangement (21) which in turn comprises a pressure belt (24) for pressing a cover web (2) against the glued crests of the corrugated web (4) against which the corrugated web (4) is pressed against the first corrugating roller (6). Further, the assembly has a pressure belt engagement arrangement (31) comprising a pressure belt engagement device (35) which engages down at the pressure belt (24) during a corrugating roller change to minimize and / or eliminate at least a downward sag of the pressure belt (24) of the pressure belt engagement device (35) and at least one displacement device (32) which is connected with the pressure belt engagement device (35) to displace the pressure belt engagement device (35) between a pressure belt engagement position and an idle position.