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Forming & Sizing Machine

Forming & Sizing Machine
Forming & Sizing Machine
Product Code : HG76 Forming&Sizing
Product Description
The forming and sizing mill is important in the pipe line. It turns the steel strip of a certain specification into tube blank and welds them into pipes with HF current. When the gradually rolling strip leading by the guiding device reaches the HF welder, the FF forming mode and induction welding adopted in this mill line works. The two sides of the strip are heated to the welding point and are squeezed together. The next procedures are de-burring, cooling,sizing and roughly straightening. Then comes the pipes needed. The horizontal bottom line method is adopted in this mill and double radius for the rollers. This section includes the forming mill, welding machine, cooling device and sizing mill.

1              Mill stands lay-out: Forming: 7H (H stands for Horizontal Stand) 8V (V stands for Vertical Stand), Sizing: 6H (Horizontal Stand) 6V (Vertical Stand) 2T (T stands for Turk Head)

Feeding (5 roll passive leveling)—H1—H 2—V1—H 3—V 2—H 4—V 3—V 4—V 5—H5—V6—H6—V7—H7—V8—Guide—Squeezing—Outer De-burring—Polishing—Cooling—V 9—H 8—V 10—H 9—V 11—H 10—V 12—H 11—V 13—H 12—V 14—H 13­­­­­­­---Test speed measure—T1—T2

2  Main Block construer:

·         Horizontal roll axle diameter of 60mm (at the roller position), material of 40Cr, whole roll shaft heat processed, Tempering HB260~290, surface high-frequency hardening processed HRC50~55

·         Roll stands material ZG270-500, gear slider block of 45 forging steel

·           Vertical roll axle diameter of 40mm (at the roller position), material of 40Cr, whole roll shaft heat processed, Tempering HB260~290, surface high-frequency hardening processed HRC50~55

·         Seam guide device adopt two rollers type, the roll stand can be adjusted in several directions so that the seam can be guided into the welding position correctly. Roll axle diameter is 40mm (at the roller position)

·         Squeeze roller stands adopt two rollers type, Roll axle diameter is 50mm, material is 40 Cr, whole roll shaft heat processed, Tempering HB260~290, surface high-frequency hardening processed HRC50~55

·         Two Scrapers for burr, the scratching blade can be adjusted crosswise and longitudinally, and with quick lift function and two pair of holding rolls.

·         Polishing roller adopt the horizontal type, the shaft diameter is 60mm.

·         Water cooling pool Spraying and bathing at the same time to quickly make the tube cool to normal and prevent the tube from shaping when sizing.

·         Roughly straightening device adopts four rolls type, and can be adjusted in several directions to straighten the tube reversely and then deliver the pipe into the cutting section straightly. Roll axle diameter is 40mm, material is 40 Cr, whole roll shaft heat processed, Tempering HB260~290, surface high-frequency hardening processed HRC50~55

·         Gear Distribution box adopts Spiral worm and gear structure, Gear material: 20CrMnTi, carburizing and quenching; m=10, Box body: casting steel, ZG270-50

·         Forming& sizing parts drove by one set 132 KW Z4 DC motor with the ZLY cylinder gear speed reducer

·         Drive shafts chooses 130 Brand or Old Yellow river brand.

Worktables adopt steel plate welded structure, used to support the forming of sizing machine normal use, the worktables maintain rigidity and machining accuracy. The thickness of plate max 30mm. the thickness of plate is 8mm.



MAA IMPEX
12A9, Four Building West Seg Business Center, Futian District, Shenzhen - 518048, Guangdong, China
Mr. Girish (Director)
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