Stainless steel tube expansion machine, water pressure expansion tube, pneumatic expansion tube fixture

High pressure expansion machine for radiator (inflation type)

1、 Function

The radiator consists of multiple heat dissipation tubes, a base, heat dissipation fin components, and brackets. Due to the small thickness of the heat dissipation tubes and the large number of heat dissipation fins, the connection is more complicated. It is necessary to eliminate the gap between the heat dissipation tubes and fins (0.3mm-0.4mm) to achieve interference fit and prevent loosening. This is the function of the tube expander.

2、 Reference standards

GB/T151-1999

3、 Connection between heat exchange tubes and tube sheets

Inflation inflation

The pneumatic hydraulic expansion joint adopts our company's gas-liquid booster pump as the power source, with low noise, light weight, and fast pressure rise speed, which is twice that of the hydraulic expansion joint.

4、 Composition of gas-liquid expansion tube machine

The pneumatic hydraulic tube expander consists of three parts: the electronic control part, the pneumatic boosting system, and the expander. The electrical control adopts PLC control. The pneumatic boosting system adopts two Saist high-pressure liquid boosters It can quickly increase the pressure, and the pressure increase time within a length of 5m and a diameter of 25mm can reach the predetermined pressure within a few tens of seconds. Including three parts: booster host, high-pressure hose, and expansion head sleeve fixture.

5、 Inflationary main technical parameters

1. Rated expansion pressure: 0-100MPa (0-1000kg)

2. Test pressure: 120MPa

3. Expansion speed: about 1 piece/min

4. Expansion medium: water

5. High pressure pipe pressure explosion pressure: 150Mpa

6. Input power supply: 220V

7. Drive: Compressed air 6-8 kg

8. Water source: tap water

9. Control system: PLC

10. Voltage control accuracy:+-1%

11. Workstation: 1 workstation

6、 Product Features

1. The holding time and expansion pressure can be set arbitrarily to ensure the quality of expansion;

2. The foot switch control is convenient to operate

3. Fast boosting and unloading speed, and doubled expansion speed;

4. Perform a one-time uniform expansion joint on 0-3mm thick heat pipes and fins;

5. The residual stress of the device after expansion is low, making it less prone to gap corrosion;

6. After expansion, the axial direction of the heat exchanger does not elongate but slightly contracts, which is beneficial for reducing operating noise;

7. There is no pollution at the expansion joint, and the expansion before welding is not affected;

8. This device can also be used for the conventional steel ball compression connection method with built-in heat dissipation pipes

IIIComposition of tube expanding machine

pneumaticwater pressureThe tube expander consists of three parts: the electronic control part, the pneumatic boosting system, and the expander. The electrical control adopts Siemens PLC control. The pneumatic boosting system adopts two Saist high-pressure expansion tube machines and liquid superchargers Can quickly increase pressure, pipe diameterThe boosting time within 15mm in length and 5m reaches the predetermined pressure within a few tens of seconds.

5Product Features

The expansion fixture is easy to operate, convenient to clamp, and has a high clamping force,

canon one's ownSet the holding time and expansion pressure to ensure the quality of the expansion joint;

Foot switch control is convenient to operate

The speed of pressure rise and release is fast, and the expansion speed is doubled;yesmechanicalSwollen joint3timesabove.

Perform a one-time uniform expansion joint on the entire thickness of the heat dissipation tubes and fins;

The residual stress of the device after expansion is low, making it less prone to gap corrosion;

After expansion, the axial direction does not elongate but slightly contracts, which is beneficial for reducing operating noise;

There is no pollution at the expansion joint, and the expansion before welding is not affected;

VISiemens PLC controlsystem

7Touch screen softwareinterface

Chinese interface

English interface

8tube expandingexperimenteffect

Before expansion joint

After expansion joint

9Equipment appearance reference

Conventional box body

stainless steel cabinet

10Customer expansion site

High pressure pneumatic hydraulic expansion machine can achieve oil-free expansion compared to traditional mechanical expansion machine, and is applied in refrigeration industry, food machinery, petrochemical industry and other occasions

The pneumatic hydraulic tube expander consists of three parts: the electronic control part, the pneumatic boosting system, and the expander. The electrical control adopts PLC control. The pneumatic boosting system adopts two Saist high-pressure liquid boosters It can quickly increase the pressure, and the pressure increase time within a length of 5m and a diameter of 25mm can reach the predetermined pressure within a few tens of seconds. Including three parts: booster host, high-pressure hose, and expansion head card sleeve fixture