High Frequency Welded Pipe Mill Square Pipe High Frequency Tube Mill 25×25--80×80mm
Product Specifications
| Attribute |
Value |
| Coil Thickness |
1.5-4mm |
| Coil Width |
80-300mm |
| Inner diameter |
508mm |
| Outer diameter |
1800mm |
| Speed |
max 80m/min |
| Warranty |
One year |
| Material |
Low carbon HRC |
Product Description
Main Parameters and Specifications
Material Specifications
- Conforming to the YB189-64 standard
- Material: Low carbon steel and low alloy constructional steel
- Mechanical properties: σb≤380Mpa, σs≤275MPa
- Strip width: 100～320mm
- Strip thickness: 1.0～3.25mm
- I.D of Coils: Φ508mm
- O.D of Coils: φ1800mm
- Coil Weight: ≤4T
Welded Pipe Specification
- Round Pipe Diameter: Φ31.8～φ101.6mm
- Square tube size: 25x25-80x80mm
- Strip thickness: 1.0-3.25mm
- Finish pipe length: 4-6m
- Cut length accuracy: ±2mm
- Forming speed: 20-80m/min
Power, Water & Air Supply
Power Volume: Approx.600KW
Power Source: 480V/60Hz/3phases
Circulation Cooling Water Flow: 20T/h～30 T/h
Pool Volume: 30m3
Compressed Air Flow: 5m3/min
Pressure: 5～11kg/cm2
Workshop Requirements
6m wide, 70m long, at least 5m high from Ceiling Rails to Ground.
Machine Components and Specifications
1. Cone Hydraulic Uncoiler
The uncoiler is of the structure of double expansion and cantilever mandrels. It contains two main parts: main body and the fixed base. The main body is equipped with hydraulic system to satisfy the needs of expanding, contracting and braking of the mandrels.
OD of coil: φ1800mm
ID of coil: Φ508mm
Width of strip: 100-320mm
Thickness of strip: 1.0-3.25mm
Weight of strip: Max4.0T
Expansion Type: hydraulic
Break: Pneumatic driving
2. Automatic Shear and Welder
The shear welder is an important unit to the pipe mill line equipment, and mainly used to cut the no-normal strip steel head or trial, and then connecting the last strip steel trial with the next strip head so as to ensure the processing continue.
Strip width: 100-320mm
Welding thickness: 1.0-3.25mm
Cutting Type: hydraulic cutting
Welding Mode: Automatic
Pneumatic pressure: 0.5MPa
Working Cycle: Max.300 seconds
3. Spiral Horizontal Accumulator
This machine is used between the shearing welding machine and the mainframe (forming sizing machine). Its function is to run out of the previous strip, and the next strip is prepared from the continuous production of the main machine (forming sizing machine) is ensured within a time and sufficient strip steel is stored.
This machine is mainly composed of feeding guide roller frame, clamp feeding device, looper body assembly, discharging device and electrical control device.
Thickness: 1.0-3.25mm
Width: 100-320mm
Advantage: Storage material more No strike to strip steel surface
Feeding speed: Max160m/min
Carry motor power: AC 22KW
Accumulator motor power: AC 37KW
Storage diameter: 5 meter
4. Forming And Sizing Machine
Forming Part
The steel strip go into the forming stand then in the forming part into a round shape.
Feature: Horizontal roll up and down adjust way, worm gear adjust, and can adjust separately
Leveling roll lower shaft is active
Leveling shaft fix side with compensate pad
Horizontal stand quantity: 7
Horizontal shaft diameter: 80mm
Horizontal shaft material: 42Crmov
Forming speed: 20-60m/min
Motor: DC 110Kw
Leveling stand material: steel plate welding
Vertical stand quantity: 7
Vertical shaft diameter: 50mm
Vertical shaft material: 40Cr
Weld Seam Guide and Squeeze Roll Stand
Squeezing roller is to squeeze the edge of the tube which has been heated to welding temperature, by squeezing rolls giving a certain pressure to achieve welding purpose. Welding bead cutter is used to scrap weld seam and remove external burr.
Scrap knife: 2 sets
Squeezing roll shaft No.: 2
Squeeze roll shaft diameter: 55mm
Squeeze roll shaft material: 40Cr
Water Cooling Unit
Material: steel plate welding
Sizing Part
The round pipe after sizing part into the require diameter and shape
Horizontal stand quantity: 5
Horizontal shaft diameter: 80mm
Horizontal shaft material: 42Crmov
Motor: DC 132Kw
Leveling stand material: steel plate welding
Vertical stand quantity: 5
Vertical shaft diameter: 50mm
Vertical shaft material: 40Cr
Turkey head: 2sets
Gear Box
Gear box quantity: 12
Gear box body material: steel plate welding
Gear material: 20CrMnTi
Gear hardness: HRC 58-62
Gear shaft material: 40 Cr
Gear shaft hardness: HRC40-45
Reducer box quantity: 2
5. Cold Saw
The cold saw used to precisely cut all kinds of frame tube automatically. Concerning to using high accurate STD control system and machinery system, this unit has the good precisely dimension advantage, and the machinery transfer best advantage, so the quickly ability and accurate processing, without Burr is this unit advantage.
Pipe size: Round pipe: φ31.8-φ101.6mm thickness:1.0-3.25mm Square pipe:25x25-80x80mm thickness:1.0-3.0mm
Material: Q235.
Speed: Max. 60m/min
Cutting Length: 6-8m
Precision: ±3mm
Drive motor: 15kw servo motor JAPAN YASKAWA
Cutting motor: 15KW variable frequency motor
Feed motor: 4.4kw servo motor JAPAN YASKAWA
6. 300kw Hi-frequency Welder
Design Parameters
Rated output power: 300KW
Rated DC voltage: UdN=450V
Rated DC current: 500A
Out frequency: f=300~350kHz
Total efficiency: η ＞85%
Tank output form: No welding transformer output.
Ripple Coefficient: ＜1%
Welding mode: Induction welding, Contact welding
Power distribution capacity: 461KVA
Input voltage: 380V/50Hz,3 phase 4 wire system
Rated input current: I=1500A
Cooling System (Air-Water cooling system)
Output water temperature: ≤41℃,temperature range:4℃
Cooling water flow: 15m3/h
Working water pressure: 0.35Mpa
Water quality requirements: Distilled water
7. Runout Table
1.The finished pipes run along the Roll Table and to be automatically moved onto the Bench. Then simple Packing Machine packs the pipes in hexagon shape. 2.The simple packing machine contains container and pneumatically driven alignment equipment. 3.Motor of Roll Bench: 3KW
8. Roller
Forming roller Material: Cr12
Welding roller material: H13
Heat treatment hardness: HRc58~62
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