中文 
Pipe-end upsetting machine
Sino-heavymach has developed 1000/500T, 800/400T and 500/250T upsetting lines etc., for the production of oil tubes and integral heavy weight drill pipes. More than 50 equipment have been supplied to major steel mills in China, India, the US, etc.
Upsetting machines developed by Sino-heavymach include 1000/500T Pipe-end upsetting line for oil tube and drill pipe, 800/400T Pipe-end upsetting line for oil tube and drill pipe, 500/250T Pipe-end upsetting line for oil tube, etc.
Technical Parameters:
l Diameter: F60.3~177.8
l Length: 3m~15m
l Standards: API SPEC 5CT-2005; industry standards
l Ovality: ≤1.2%
l Service life of mold: ≥8000 tubes
l First pass yield: ≥98%
Inside-outside tube quenching apparatus
The apparatus adopts an outside-rotary-inside quenching process for the whole tubes. A tube is placed on supporting wheels of the rotary device and spins quickly while receiving quenching treatment from outside and inside. The apparatus developed by Sino-heavymach enables satisfactory hardenability and high percentage of martensite after quenching. More than 40 equipment have been supplied to major steel mills in China, India, Egypt, the US, etc.
Technical Parameters:
l Diameter: F 60.3~ 720
l Length: 6m~15m
l Wall thickness: 7.5~70mm
l Quenching medium: tap water, quenching oil, quenching liquid
l Standards: API SPEC 5CT-2005; industry standards
l Ovality: ≤0.3%
l End straightness: ≤1 mm/m
l Percentage of martensite after quenching: For Grade C90 and T95: ＞95%; For others: ＞90%
l Hardness after quenching: hardness difference along total length, inside and outside, circumference, etc. shall be ＜3.0HRC
Submerged in-tank rotary quenching apparatus
Quenching the whole tubes with the process of “rotation, inside spray and submerged quenching”, the apparatus is applied to quenching of heavy wall and big diameter tubes. The process has obtained China’s Invention Patent, and core technologies of the production line has independent IPR. Internationally advanced, it has met the urgent need of high performance heavy wall tubes for high pressure boiler, automobile, petroleum, etc.
Technical Parameters:
l Diameter: F60.3~ 339.7
l Length: 6m~15m
l Wall thickness: 7.5~70mm
l Quenching medium: tap water, quenching oil, quenching liquid
l Standards: API SPEC 5CT-2005; industry standards
l Ovality: ≤0.3%
l End straightness: ≤1 mm/m
l Percentage of martensite after quenching: For Grade C90 and T95: ＞95%; For others: ＞90%
l Hardness after quenching: hardness difference along total length, inside and outside, circumference, etc. shall be ＜3.0HRC
High pressure hydraulic tube testing machine
As essential equipment for quality test of OCTG, line pipes, boiler tubes, etc., the equipment developed by Sino-heavymach keeps high performance and has reached the international level. More than 80 equipment have been supplied to major steel mills in China, India, the US, etc.
The structure could be top/bottom feed, single/double tube testing, etc., and the max pressure can reach 200Mpa. Our design could be tailored to special needs.
Technical Parameters:
l Diameter: Φ60.3mm~1626mm
l Length: 5m-18m
l Test pressure: 6 MPa~200 MPa (adjustable)
l Sealing method: radial large gap ultra-high-pressure seal or end face seal
l Hold time: 5~300s (adjustable)
l Test pressure accuracy: ±1% (max test pressure)
l Operating mode: manual, semi-auto and auto
l Testing speed (5s hold time): max 130 tubes/hour
l Standards: API 5CT; enterprise standards, industry standards
Pipe drifter
As one of the indispensable test equipment in pipe processing lines, a pipe drifter tests whether the drift diameter fits the API standard. Drifters developed by Sino-heavymach have two types, mechanical and pneumatic. Well received by customers for techniques and performance, more than 50 equipment have been supplied to major steel mills in China, the US, Mexico, India, etc.
Technical Parameters:
l Diameter: Φ60.3mm~ 508mm
l Length: 6m~18m
l Operating mode: manual, semi-auto and auto
l Frequency: max 200 pipes/hour
l Standards: API 5CT; enterprise standards; industry standards
Pipe-end necking/expanding machine
Necking is for threading special fasteners, while expanding or rounding is for butt-welding of pipes onsite.
Technical Parameters:
l Diameter: Φ114mm~ 1626mm
l Length: 6m~18m
l Operating mode: manual, semi-auto and auto
l Frequency: max 20 pipes/hour
l Standards: API 5CT; enterprise standards; industry standards
Full length pipe expanding machine
By rectifying the deformation of pipes caused by welding, the equipment makes the ovality and straightness reach the required dimensional accuracy, reduces or eliminates Bauschinger effect during fabrication, improves yield strength, and eliminates residual stress at forming and welding positions. The equipment developed by Sino-heavymach has two types, mechanical and hydraulic.
Technical Parameters:
l Diameter: Φ114mm~ 1626mm
l Length: 6m~18m
l Operating mode: manual, semi-auto and auto
l Frequency: max 20 pipes/hour
l Standards: API 5CT; enterprise standards; industry standards
Bimetal composite pipe hydroforming device
The device makes the anticorrosion thin-wall alloy pipe adhere tightly to the outer layer of heavy wall carbon steel pipe by hydraulic pressure. Bimetal pipes thus produced possess both satisfactory mechanical strength and high corrosion-resisting property. Notable features of our machine are: (1) evenly distributed pressure, easy to control; (2) no scratch or damage on the internal surface, and no work hardening phenomenon; (3) high level precision and automation; (4) convenient for mass production; (5) small investment, energy-saving, low cost.
Technical Parameters:
l Production capacity: 20 pipes/hour (pipe diameter 219mm and length 12000mm±300mm)
l Diameter: 88.9~610mm
l Length: 6m~15m
l Wall thickness, outer pipe: 4~25.6mm
l Wall thickness, inner pipe: 1~5mm
l Standard: API-5LD, etc.
l Hydraulic pressure: 6~200Mpa
l Mode of pressure holding: supercharger continuous holding
Metallurgical bimetal tube production line
The line processes and fabricates bimetal tubes by “JCOE” forming of metallurgical composite sheets.
Technical Parameters:
l Specification: Φ219~ 1422 mm
l Length: 11.5~12.5 m
l Material of inner stainless steel tube: 316L, LC2205, 825, 625, etc.
l Wall thickness of inner stainless steel tube: 2~4mm
l Wall thickness of base tube: 8~40mm
