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Filing date
Publication date
Application filedfiledCritical
Priority to JP13988586UpriorityCriticalpatent/JPS6347037U/ja
Priority to PCT/JP1986/000523prioritypatent/WO1988001917A1/en
Publication of JPS6347037UpublicationCriticalpatent/JPS6347037U/ja
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
B21H1/00—Making articles shaped as bodies of revolution
B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Forging
(AREA)
Lubricants
(AREA)
Description
【図面の簡単な説明】[Brief explanation of the drawing]
図面は本案の断面図である。
The drawing is a sectional view of the present invention.
Claims (1)
【実用新案登録請求の範囲】
図面に示す通り
クロスロール鍛造機全体を窒素発生機１オイル カーテン２を取り付けたカバー３でおおうシステ ムにより無酸素状態を保ち、金属加工処理工程に おける脱炭防止、酸化防止の方法。[Claims for Utility Model Registration] As shown in the drawing, the entire cross-roll forging machine is covered with a cover 3 equipped with a nitrogen generator 1 and an oil curtain 2 to maintain an oxygen-free state and prevent decarburization and oxidation during the metal processing process. How to prevent it.