Electromechanical Devices



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　　　　　　　Index - Products —> Electromechanical devices

Electron beam welding machines

Electron beam welding is a technology using high-pressure static field to concentrate the electrons emitted from the hot cathode into electron beam which is focalized by electromagnetization into a high-power-density point (usually up to 105 ~ 108 W/cm 2 ). This point bombards the parts to weld and quickly melts the metals at the two sides of the welding seam to conduct welding. The welding by this technology needs no welding bar. The welding seam can be very deep and narrow. Its thermal influencing area is small, welding speed is high and welding path is controllable. Therefore, the welding seam is pure, the depth-width ratio is big, the thermal deformation is small, the technological parameters can be adjusted and controlled, the operation is easy by computer and the qualified welding rate is high. Furthermore, it can weld refractory metals (such as tungsten, tantalum and niobium), and can weld parts with different melting points (like welding copper and tungsten together) or different depths.

Application: It is widely used to the fields of aerospace, aeronautics, nuclear energy, weapon, instrument, automobile and electrical machinery, etc. For example, artificial satellite parts, framework parts or combination parts made of titanium alloy or zirconium plates, elastic parts, sylphons, gear components, automobile semi-axis, electrical contacts, bimetal saw strips and bimetal materials, etc.

　　　　　　　　　　　　Classification of electron beam welders

According to the accelerating voltage of the electron gun	According to the vacuum degree of the welding chamber
Low voltage type (D): under 40 kV	Black vacuum: under 5 Pa
Medium voltage type (Z): 45 ~ 70 kV	High vacuum: 2 × 10 -2 Pa
High voltage type (G): 120 ~ 150 kV

　　　　　　　　　　Electron beam welder series of medium voltage type (HDZ)

Series number	HDZ1	HDZ2	HDZ3	HDZ4	HDZ6	HDZ10	HDZ15	HDZ30
Power (kW)
Depth to weld (mm)*
Welding speed (m/min)

*: The depth to weld is measured usually with stainless steel as the base material.

1) HDZ-3E EB Welder
Power: 3 kW
Accelerating voltage: 60 kV
Vacuum degree of the welding chamber: 2 × 10 -2 Pa
Welding chamber size: 700 × 700 × 700 mm

2) EBW -2A EB Welder
Power: 2 kW
Accelerating voltage: 70 kV
Vacuum degree of the welding chamber: 6 × 10 -2 Pa
Welding chamber size: 320 × 240 × 200 mm

3) HDZ -10C EB Welder of High or Black Vacuum with a Long Welding Cabinet
Power: 10 kW
Accelerating voltage: 60 kV
Vacuum degree of the welding chamber: (High vacuum) 3 × 10 -2 Pa
(Black vacuum) 6.5 Pa
Welding chamber size: 3000 × 700 × 700 mm

Tel: +86-773-5888287
Fax: +86-773-5872102
Email: zhongqh@glesi.com.cn

Electron beam melting furnaces

Electron beam melting furnace melts local regions of refractory heavy metals by using high-energy-density electron beam to remove impurities such as light metals. Highly purified heavy metals such as tantalum and niobium can be refined by multiple local melts. It can avoid industrial pollution caused by chemical purification and realize the purifying process that other methods like chemical purification are not able to achieve.

Main parameters:

Accelerating voltage	Melting power	Melted metal ingot diameter
20 kV	60 kVA	Ф 40 mm , Ф 60 mm
35 kV	250 kVA	Ф 90 mm , Ф 130 mm

Tel: +86-773-5888287
Fax: +86-773-5872102
Email: zhongqh@glesi.com.cn

Energy savers

Energy saver is a power-saving device installed between the low-voltage output of power distribution transformer and the power-consuming equipment, automatically adjusting the equipment's voltage to the optimum degree, and in the mean time having the functions of restraining higher harmonics and reducing 3-phase voltage unbalance. This device is widely used in factories, business buildings, hotels and restaurants, and civil lighting, etc.

Main parameters:

1) Capacitance: 15 kVA ~ 2000 kVA
for four types: manual, semi-automatic, automatic and outdoor energy saver
2) Rated voltage: 3-phase 380 V
3) Rated current: 22.5 A ~ 3000 A
4) Insulation grade: Grade H (The highest working temperature allowed: 160 ℃ )
5) Voltage adjusting rate (%): 0, 2, 3, 4, 5, 6, 7, 8
6) Power-saving rate range (%): 6 ~ 20

Tel: +86-773-5888284
Fax: +86-773-5603081
Email: luors@glesi.com.cn

Special transformers

Main parameters:
Rated power: 20 kVA, 30 kVA, 40 kVA, 50 kVA, 60 kVA
Type: Low-voltage and big-current transformer
Cooling methods: Water cooling or dry cooling (natural cooling)
Design and manufacture can be made according to the special requirements of users.
Application scope: Special transformers are used in the occasions requiring low-voltage and big-current transformers such as diamond presses, electric furnace heating and electrolyte.

Tel: +86-773-5888284
Fax: +86-773-5603081
Email: luors@glesi.com.cn