18 Years Factory 00% Bar Break Performance Of High Tensile Strength Rebar Coupler China Leading Manufacture - GD-150 Upset Forging Machine – YIDA

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 Upset Forging Parallel Thread Technology  Brief Introduction Of Upset Forging Parallel Thread System  With the emergence of high-rise building, large-span space and special structures, the application of building rebar is developed towards big diameter, dense and high strength. The traditional rebar splicing technology such as welding and lapped splicing can not meet the requirements commendably in strength and saving cost. In this condition, as a new rebar connection technology, parallel...


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18 Years Factory 00% Bar Break Performance Of High Tensile Strength Rebar Coupler China Leading Manufacture - GD-150 Upset Forging Machine – YIDA Detail:

 Upset Forging Parallel Thread Technology

 Brief Introduction Of

Upset Forging Parallel Thread System 

With the emergence of high-rise building, large-span space and special structures, the application of building rebar is developed towards big diameter, dense and high strength. The traditional rebar splicing technology such as welding and lapped splicing can not meet the requirements commendably in strength and saving cost. In this condition, as a new rebar connection technology, parallel thread connection technology, especially the upset forging parallel thread connection technology is now more and more adopted in projects.

As an important parallel thread connection technology, the upset forging parallel thread connection technology posses following advantage:

1, Wide working range: adaptable for Φ12mm-Φ50mm same diameter, different diameter,

bending, new and old, advance covered up rebar of GB 1499, BS 4449, ASTM A615 or ASTM A706 standard.

2, High strength: stronger than the reinforcement bar and guarantees bar break under tensile stress(tensile strength of bar joint =1.1 times of bar’s specified tensile strength). It can satisfy the requirements stipulated in the Chinese standard JGJ107-2003, JG171-2005.

 3, High efficiency: upset forging and threading one joint only needs no more than one minute, and handy operation and quick link.

4, Environmental protection and economy profit: no environment pollution, can work all day, not affected by weather, economize energy source and bar material

 

Processing Machine

1. (GD-150 Machine )Rebar End Upset Forging Parallel Thread Machine

 22

Rebar diameter range:

φ12φ40

Oil pump flux:

5L/min

Rating power:

60Mpa

Electric motor power:

4KW

Piston movement distance:

100mm

Out dimension(mm):

1225×570×1100mm

Weight:

597Kg

 

This machine is the preparative machine for rebar connection in construction work. Its main function is to forging the end part of rebar to raise the rebar area and therefore enlarge the strength of rebar end.

2. (GZ-45Machine )Steel bar Parallel Thread Cutting Machine

33

Rebar diameter range:  

φ16φ40

Threading cutting speed

32r/min

Backing speed

64r/min

Electric motor power:

2.4/3KW

Cutting head movement distance:

150mm

Out dimension(mm):

1325×570×1070mm

Weight:

537Kg

 

This machine is used to cut the thread for rebar end after cold forging

3.Rebar Couplers

Advantages:

l Bar-break feature guarantees fully ductile elongation.

l No reduction of the bar cross-section area.

 44

 The parameters of standard couplers designed for HRB400

Size

Thread

D(±0.5)mm

L(±1) mm 

P

Weight(Kg)

Φ16

M20

26

40

2.5

0.082

Φ18

M22

29

44

2.5

0.114

Φ20

M24

32

48

3

0.153

Φ22

M27

36

52

3

0.207

Φ25

M30

40

60

3.5

0.303

Φ28

M33

44

66

3.5

0.398

Φ32

M36

50

72

4

0.608

Φ36

M39

56

80

4

0.875

Φ40

M45

62

90

4

1.138

Material of the rebar coupler is No.45 steel.

Assembly Benefit

1. No torque wrench required.

2. Assembly validated by visual inspection.

3. Manufacturing of couplers under strict quality plans.

4. Standard ISO Parallel Metric Thread design.

Remarks:

According to Chinese standard GB 1499.2-2007,

for rebar HRB400:Tensile strength≥540Mpa,Yeild strength≥400Mpa;

for rebar HRB500:Tensile strength≥630Mpa,Yeild strength≥500Mpa.

Working principle:

1,First,we use Upset Forging Parallel Thread Machine (GD-150 Machine) to forge the end of rebar.

2,Second we use Parallel Thread Cutting Machine (GZ-45 Machine) to thread the ends of the rebar which have been forged.

3.Third,a coupler is used to link the two ends of rebar in parallel thread.

The upset forging parallel thread connection technology can not only be used for the connection of HRB400,but also for other rebar, such as HRB500,those of whose tensile strength is higher than 700Mpa and so on.

 


Product detail pictures:

18 Years Factory 00% Bar Break Performance Of High Tensile Strength Rebar Coupler China Leading Manufacture - GD-150 Upset Forging  Machine – YIDA detail pictures


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