GB700-88 Straight Seam Welded Tube Mill Line ZG60 High Frequency Pipe Mill Line

GB700-88 Straight Seam Welded Tube Mill Line ZG60 High Frequency Pipe Mill Line

Description:
1. Description
This equipment is specially used for producing Φ19-Φ63.5mm, 1.0-3.0mm high-frequency straight seam welded tube and corresponding square tube and special-shaped tube (δ≤2.5mm). The composition of equipment is from uncoiler to fixed length cutting saw. Rolling speed can be adjusted correspondingly within suitable range of tube diameter and wall thickness.

2. Applicable material:
(1) Hot or cold-rolled steel strip (As per GB700-88)
(2) Material: Low-carbon steel, low alloy steel, galvanized steel strip
(3) The thickness of steel strip: 1.0-3.0mm (As per GB708-88)
(4) The width of steel strip: 60-200mm
(5) I.D. of steel coil: Φ450-Φ550mm
(6) O.D. of steel coil: Φ800-Φ1200mm
(7) Maximum weight coil: 3000kgs

3. Dimension range of processing steel tube:
(1) O.D.: Φ19-Φ63.5mm
(2) Wall thickness: 1.0-3.0mm (square tube and special-shaped tube δ≤2.5mm)
(3) Length: 4-8M
4. Milling speed: 30-80M/min(choose different speed as per different pipe diameter and thickness)
5. Product (steel tube) process flow:
Raw material (steel coil) → uncoiling → shearing and end welding → material accumulating → non-power leveling → mill-forming → high-frequency welding → removing burrs outside of weld seam → cooling → sizing → roughly straightening → fixed length cutting → finishing tube
7. Roller

1. Rolls for welded tube will be ordered additionally according to type and specification provided by customer.
Material: Cr12mov
9. Technical appendixes
a. Uncoiler

Structure type: Double-side180ºrotary HYDRAULIC expanding tight, which insure steel coil feeding alternatively and make steel strip going into accumulator freely.

Applicable range:

Steel strip width: 60-200mm

Thickness: 1.0-3.0mm

Steel coil O.D.: Φ800-Φ1200mm

Steel coil I.D.: Φ450-Φ550mm

Steel coil weight: Max.3000kgs

Hydraulic parts: YUKEN

Pneumatic parts: AIRTAG

AC motor: Siemens Beide
b. Shearing and butt-welder:

Usage: ensure two coiled steel strips shearing tidily and then welding together and
leveling weld sea
c.Horizontal-type accumulator: (AC motor is SIEMENS BEIDE with ABB adjustor )

The steel strips strips stored in it shall be enough to ensure main machine to run continuously while welding two coiled strips.

(1) Structure:Horizontal-type plate-welded part with automatic feeding and delivery system. Feeding motor: AC 15KW and Driven motor: AC 18.5KW

(2)Accumulating volume: 150-300M.

Horizontal type accumulator

d. Forming, welding and sizing unit:

(NSK bearing used for horizontal and vertical stands)

(1) Feed leveling device:

a. Type: 5 rolls are passively leveled for leveling strip steel to make steel strips go into forming device.

b. Guiding roll: One pair

(2) Forming device:

Mainly roughly mill-forming steel strip and controlling weld seam.

a. Horizontal roll stand:

Quantity: 7

Structure: Cast steel, double housing, changing rolls in the side

Diameter of horizontal roll’s shaft: Φ70mm, material: 42CrMo
b. Vertical roll stand:

Quantity: 9(vertical miller group)

Type: Passive rotation

Diameter of vertical roll’s shaft: Φ40mm, material: 45# steel

c. Drive gear box

Quantity: 7

Structure: Spiral bevel gear, cylindrical gear

Material: casing: QT50, gear: 20CrMnTi and 40Cr, input and output shaft: 40Cr

Drive transmission: 14 sets of Jeep Auto 212 universal transmission shaft

d. One set of bed for installation
(3) Guiding extruding and welding scraping apparatus:

a. One set of guide roll stand for controlling direction of pipe seam to insure pipe seam flatly and straightly entering into extruding rollers.

b. One set of extruding roll stand for controlling weld seam to realize successful welding.

c. Two sets of scraper frame for scraping outside weld seam

d. Installation bed along with forming machine

(4) One set of water cooling device.

(5) Sizing device: Mainly fine shaping pipe after welding and controlling size accuracy. Each 6 sets of horizontal roll stand, vertical roll stand and drive gearbox, 12 sets of universal shaft. (Structure same as forming device)

(6) Roughly straightening machine frame:
a. Type: Turk’s head type, 4 rolls single side two sets
b. One installation bed along with sizing main machine.

(7) Driving system: The main unit is connected with main reduce by major motor and transmits power to gearbox branches, then gearbox branches drive upper and down shafts on horizontal roll frame.
a. Main motor: Z4 series, DC 185KW (Hengli DC motor) one set
b. Main reducer: ZLYseries (outside four-shaft ends) one set
e. High-frequency welder: (Prpeared by buyer/end-user)
Solid-state High-frequency welding machine: 200KW
Include DC speed adjustor, overall control table and button station
f. Cold CNC cutting saw:

Driven motor: AC servo motor Yaskawa made in Japan 15KW
Feeding motor: AC servo motor Yaskawa made in Japan 2.9KW
Cutting motor: AC SIEMENS BEIDE made in China 7.5KW
Hydraulic parts: YUKEN
Pneumatic parts: AIRTAG

Saw blade: KINKELDER made in Holland(Imported high-speed steel PVD coating technology)
g. Run-out table:
Welded frame structure equipped
with sizing signal system

Beijing Silk Road Enterprise Management Services Co.,LTD is a joint venture enterprise specializing in the production of cryogenic equipment, which is the subsidiary company of Tai Wan Lian Su group. Registered capital is 10,000,000 Yuan (about 1,600,000 USD ). Founded in 1996, Tailian has been doing research and development for various technologies, manufacturing of equipment, sales and service in the filed of cryogenics in both domestic and foreign markets. Owning advanced technology and producing facilities, we also have dozens of experienced specialists for cryogenic and air separating area for years. Tailian has been the supplier of dozens of world famous transnational companies, such as China nuclear power engineering Co., Ltd, China Aerospace Science and Technology Corporation, Xinjiang Guanghui Industry Investment Group Company Limited, Sinopec Group, China National Petroleum Corporation（CNPC）, Linde Group, France Air Liquid, China National Offshore Oil Corporation, Coca-Cola,Praxair，Hang Yang Group, Pepsi, Wahaha Group, Hafei Aviation Industry Co., Ltd, ENN Energy Holding Group, Qingdao Beer, Budweiser, Shell, CIBA and B.O.C. etc. Our annual producing capability of liquid pump is round 800-900 sets, and so far we have finished more than 10,000 sets cryogenic liquid pumps to the customers. In the past few years, our productions have been exported to several countries, such as Vietnam, Kazakhstan, Pakistan, Congo, Bangladesh, Egypt, Iraq, Cambodia, Angola, Philippines, India, Venezuela, Indonesia and Lao, etc.

Beijing Silk Road Enterprise Management Services Co.,LTD is specialized in producing cryogenic liquid pumps for LNG, LPG, liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquid ammonia and methane as well as cryogenic liquid vaporizer, oxygen compressor, carbon dioxide equipment and gas pressure regulating system. Beside that, we also undertake turnkey project of LNG/L-CNG vehicle fueling station, LNG station, LNG peaking-use evaporating station, LNG gas cylinder fueling station and undertake coal to gas project and all other industrial gas applications. Tailian also researches and develops, produces, sales and services for the equipment mentioned above.

Tailian has got the special equipment manufacturing license (A-grade pressure pipes) of People’s Republic of China and approval certificate of ISO9001：2008. Tailian is one of the members in 30 companies who got the title of ‘Golden Reputation’ in the First China Integrity Network Summit. And We are also the member “ Union of Golden Reputation”. With advanced technology, superior quality and value of after sale service, Tailian earns trust from lots of transnational gas companies both at home and abroad.

Sharp tools make good work. The administrator of Tailian realized that only good management, idea or good talent are not enough. Advanced facility must be adopted to ensure powerful manufacturing prowess and superior quality of our products. We purchased world advanced producing facilities(such as process center and CNC) and have experienced specialists, which can guarantee the good quality of products.

Our company persists in the principle of customer first, sincere service, products sale over the country, and export to Southeast Asia and the Middle East. Our products are mainly used in petroleum, chemical, nuclear power plants, iron and steel, electric power, military, aerospace and other industries.