الوصف

1.composition

The whole set of high frequency solid state

welder is composed of switch rectifying 

cabinet,  inverter  output cabinet, central

control console,mechanical adjusting

equipment, water cooling system and an air

conditioner.

a.Switch Rectifying Cabinet

We integrate the switch gear cabinet part

and rectifier part, besides the functions

of switch cabinet, this design also has

rectifying control functions on solid-state

H.F. welders.

Install incoming disconnect switch

,incoming current meter, voltage

meter(switchable)and incoming voltage

indicating light.

Install *-phase full-controllable thyristor

rectifying bridge to achieve power

regulation of H.F. welders.

Install flight wave reactor, flight

capacitor and filter to increase flight

coefficient.

b.Inverter output cabinet

The invert part is considered of MOSFET

single phase invert bridge in parallel

style. Each bridge’s design power is **0

KW/*0KW. We adopt building block mode to

pile up power, it is very convenient to

install and maintain because every single

bridge board is designed as drawer

structure consisted of slideway.

We adopt matching transformer to realize

power combination, also we adopt sub-

resonance, no-welding transformer output

mode and make resonance directly by tank

resonance capacitor(low voltage)and

inductor to achieve steel pipe welding

power transmission by output lead.

Use sealed box and install overhead air

conditioning.

c.Central console

The console achieves remote control and power

regulation of solid-state H.F. welder, installed with

LCD; also it has indicators of armature voltage,

field voltage on DC speed regulation cabinet and

indicators of DC voltage, DC current on welder.

Installation of power-speed closed loop control

function is optional. The console has design

difference according to different types and

quantities of matching DC speed regulation

cabinet.

d.Mechanical adjusting equipment

*-D adjustable bracket: for induction welding

mode, applied with installation and adjustment of

invert output cabinet, the inductor position can be

adjusted manually.

*-D adjustable bracket: for induction/contract

welding mode, applied with installation and

adjustment of inverter output cabinet, the inductor

position can be adjusted by electric or manual.

e.Circulation soft water cooling system

(water-water cooler)

The water -water cooling system is composed

of heat exchanger with the adoption of the

special corrugated structure which makes

the soft water form sharp turbulent flow in

order to strengthen heat exchange. The

system holds the advantage of compact

design, small area occupation, convenient

dismounting and high efficiency of heat

exchange. Only with the ability of heat

exchange but not cooling, it is necessary

to use external circulation system to

accomplish the heat exchange.

2. Maindesign indext of solid-state H.F.

welder