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Matches 851 - 900 out of 2,130

Document Document Title
JPH0741292B2  
JPH0741291B2  
JPH07116709A
PURPOSE: To prevent seizure and to eliminate plunging flaws or the like by rolling a material to be rolled while supplying lubricant which adds solid lubricant into swollen mica base aq. solution between rolling rolls, guide shoes and th...  
JPH0718410Y2  
JPH0718408Y2  
JPH0718404Y2  
JPH0718405Y2  
JPH0718403Y2  
JPH0739016B2  
JPH0734927B2  
JPH0734960B2  
JPH0734959B2  
JPH07100560A
PURPOSE: To provide a manufacturing method for a zirconium alloy seamless pressure pipe by which the aggregate structure thereof is changed so as to improve safety during the operation of a nuclear reactor, thereby improving the reactor ...  
JPH07100509A
PURPOSE: To uniformize rolling distribution and to decrease ununiform thickness by piercing and rolling a seamless steel tube with piercing rolls where the majority of the roll is parallel with a pass center when a seamless steel tube is...  
JPH0732921B2  
JPH0729126B2  
JPH0729129B2  
JPH0729127B2  
JPH0729131B2  
JPH0729128B2  
JPH0775806A
PURPOSE: To provide a method for rolling a seamless steel tube under graphite lubrication by which surface roughening is extremely reduced by uniformly feeding the specified amount of graphite in the length direction in the hollow shell ...  
JPH0722765B2  
JPH0715108U
[Objects of the Invention] The adhesion thing stuffed into the element tube peripheral face immediately after is removed as a roll turner, and it repairs the crack of an element tube peripheral face. [Elements of the Invention] It is a d...  
JPH0747409A
PURPOSE: To roll a seamless steel tube in which an uneven metal scarcely exists in the peripheral direction with mandrel bars of the number being as small as possible by executing the rolling by inclining and arranging roll shafts of a p...  
JPH0712482B2  
JPH0712481B2  
JPH0739909A
PURPOSE: To manufacture a seamless steel tube wherein seizure is prevented and the quality of the outer surface of a product has been improved. CONSTITUTION: The seizure of a stock 1 to be rolled to the surface of a guide shoe is caused ...  
JPH0739908A
PURPOSE: To reduce the surface scratches of a product and stably manufacture a seamless steel tube excellent in surface quality by rolling a rolled stock continuously as it is supplied to the following stage after the outer surface of th...  
JPH079501U
[Objects of the Invention] Various kinds of regulating functions are given to Thijs Cros * ル for ピアサ *. [Elements of the Invention] A tip of ロ * ル driving shaft 3 of Thijs Cros * ル 2 is joined to slide チョック 4, and ...  
JPH0710401B2  
JPH0732013A
PURPOSE: To effectively operate roll rearrangement and to reduce the entire height of a piercing mill. CONSTITUTION: The device has upper and lower rolls 2, 3 freely ascending and descending by upper and lower rolling-down devices 6, 7 b...  
JPH078365B2  
JPH0726323A
PURPOSE: To produce a seamless steel tube excellent in SSC resistance by specifying chemical components and also limiting hot rolling conditions and cooling conditions, respectively. CONSTITUTION: A steel having specific chemical compone...  
JPH0724508A
PURPOSE: To minimize a gap between a guide disk and a conical roll, to prevent exterior flaw of a material and to improve the accuracy of external size by making a disk shaft case swingable in the pass-line direction, moving the case and...  
JPH0716617A
PURPOSE: To make a roll rearrangement work efficient and to miniaturize a stand. CONSTITUTION: In the stand 1 provided with front and rear housings 1A, 1B, upper and lower rolls 2, 3 which are lifted and lowered with upper and lower scre...  
JPH0718328A
PURPOSE: To provide a manufacturing method of a seamless steel tube having grain fining organization. CONSTITUTION: After a square steel billet is heated to a high temperature of 900 to 1050°C, the billet is rolled with a press rolling ...  
JPH0716618A
PURPOSE: To make a roll rearrangement work efficient and to lower the overall height of a mill. CONSTITUTION: Upper and lower rolls 2, 3 wich are lifted and lowered with upper and lower screw down devices 6, 7 and right and left disks 8 ...  
JPH0718327A
PURPOSE: To provide a manufacture method of a seamless steel tube having grain refining organization. CONSTITUTION: This seamless steel tube having grain refining organization is manufactured as below. After a steel heated to a high temp...  
JPH072257B2  
JPH079013A
PURPOSE: To bore billets having different kinds of major diameters without injuring the outer surfaces by providing at least a pair of guide rolls having a concaved surface each which can adjust interval, crossing angle and revolving spe...  
JPH071010A
PURPOSE: To eliminate a hot saw and to improve the yield of tube manufacturing by pressing down fins, over fillings which are generated by elongating with a mandrel mill and crushing allowance at the time of bar stripping by providing a ...  
JPH06104243B2  
JPH06344009A
PURPOSE: To prevent the generation of inner surface flaw of a seamless steel tube and miss roll by providing spraying nozzles for jetting/supplying an abrasion increasing agent to the tip of the inlet guide for a billet. CONSTITUTION: Sp...  
JPH0646564Y2  
JPH0692630B2  
JPH0692629B2  
JPH0692006B2  
JPH06315703A
PURPOSE: To provide a rolling mill for piercing and elongating of a solid billet with which roll adjustment and exchange are easy. CONSTITUTION: This rolling mill has an open top and an open interior formed by a plurality of vertically e...  
JPH0688050B2  
JPH0685922B2  

Matches 851 - 900 out of 2,130