The Cooperation n Nepal, Indian , Vietnam…

Use science and technology to vitalize enterprise, Ensure reliable quality, Serve to the customer till satisfied, Improve unceasingly.

CHPE has enough ability and rich experience to design complete set of hydropower equipment, calculate the constant and parameter of equipments, select the type of equipment in technology and economic, make auxiliary facility and materials matching with equipment according to technical and economic requirements, transport, undertake or supervise erection, test and commissioning of complete equipment, train operation workers for clients, provide long terms after-sale service and so on.

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Electro-Spark Deposition Machine——Casting Defect Repairing Machine

Principle

Electro-spark deposition process is that release the high-energy stored in power supply between the metal electrode and the base metal by instantaneous high frequency, and through the gas ionization between the electrode material and the base metal to form multiple micro-arc channel, so that the surface of base metal generated instant heat micro-area, and the electrode materials was fusion welding into the base material matrix in micro electric field to form a metallurgical bond. Electro-spark process is repeated instantaneous high temperature in micro-area – the cooling process, it is different from the welding matrix no high temperature rise, and thus will not cause stress, deformation and so on.

Feature

Basic Parameter:

Applications

1. Foundry Industry

Auto parts casting products: Repair of car crankshaft, piston, cylinder, intake and exhaust pipes, brake disc, etc. casting defects, such as trachoma, stomata.

Machinery industry and machine tool industry: Correcting oversize or worn parts, such as repair lead rail and bed body of machine tool, shaft and gear type components of large machinery, cold roller and hot roller used in steel rolling, hydraulic lever of construction machinery, roller of printing machine and other parts’ weld up.

Aviation and shipping industry: The compressor shell, air compressor shell, stainless steel precision parts, precision shafts and so on.

Repair of petrochemical, coal, construction machinery and so on many other industry products.

2.  Copper, Aluminum and Other nonferrous Metals Industry

Non-ferrous metal pieces of various industries, such as aluminum parts of SF6 transformer in the power industry, and aluminum alloy cylinder block, cylinder cover, hub, aluminum alloy impeller in fan, aluminum radiator, etc. in automobile industry.

Copper alloy plumbing valves, pipes, impeller, worm and other.

3.  Model Industry

Injection mold: weld up of wear, bumps, scratches, etc. of mold, eliminate overlap, burr of product.

Die casting mold: the marks, loss, damage of zinc aluminum die casting, as well as the surface strengthening of the mould cavity and crossing pouring, to extending mold life.

Copper alloy molds, aluminum alloy mold, nitrogen molds, etc.

Suitable Weld Materials

Because of ESD-05 unique control mode, the output energy is high, the control precision, so the suitable weld material is very more type except special weld rod used for electro-spark welding.  , other welding machine used in 1.2 3.2 mm in diameter of the article straight weld material most is to use, ordinary wire to medicine after skin can use.

ESD-05 Compared with Other Electro-Spark Deposition Machine

Application Case

Repair of trachoma impeller		Repair of aluminum alloy hub
Weld up of mold		Weld up of copper casting
Repair of casting		Repair of aluminum alloy electrical parts
Repair of large parts		Repair of stainless steel parts

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Inlet Valve

Electric and anual control Butterfly Valve Nominal Diameter: 50 – 3000 mm Nominal Pressure: 0.25 – 2.5 MPa		Hydraulic control (Heavy Hammer type) Butterfly Valve with Weight Counter Nominal Diameter: 300 – 5000 mm Nominal Pressure: 0.25 – 2.5 MPa
Electric and Manual Spherical Valve Nominal Diameter: 50 – 1000 mm Nominal Pressure: 0.6 – 10.0 MPa		Electric and Manual Gate Valve Nominal Diameter: 50 – 1600 mm Nominal Pressure: 0.25 – 4.0MPa
Hydraulic Control (Heavy Hammer type) Spherical Valve Nominal Diameter: 300 – 2600 mm Nominal Pressure: 1.6 – 16.0 MPa		Hydraulic Control (Heavy Hammer type) Spherical Valve with Weight Counter Nominal Diameter: 300 – 2600 mm Nominal Pressure: 1.6 – 16.0 MPa

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40.5kV Outdoor SF6 CB		33kV Outdoor Substion
35kV, 33kV Outdoor Disconnector		35kV,33kV Outdoor Current Transformer
35kV,33kV Outdoor Potential Transformer		132kV Outdoor Switchyard

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Indoor 12KV VCB switchgear Rated voltage: 12KV Rated current: 1250 -1600A Protection class: IP2X Type test: IEC standards Dimension: 1200x1300X2850 mm		Indoor 12KV VCB switchgear Rated voltage: 12KV Rated current: 1250 – 1600A Protection class: IP4X Type test: IEC standards Dimension: 800(1000)x1650X2200 mm
Indoor 24KV VCB switchgear Rated voltage: 24KV Rated current: 1250 – 1600A Protection class: IP2X Type test: IEC standards Dimension: 800(1000)x1900X2300 mm		Indoor 24KV VCB switchgear Rated voltage: 24KV Rated current: 1250 – 1600A Protection class: IP4X Type test: IEC standards Dimension: 800(1000)x2800X2800 mm
Indoor 40.5KV VCB/SF6 switchgear Rated voltage: 40.5KV Rated current: 1250 – 2500A Protection class: IP4X Type test: IEC standards Dimension: 1400×2800(3000)X2800 mm		Indoor 40.5KV VCB/SF6 withdrawable switchgear Rated voltage: 40.5KV Rated current: 1250 – 1600A Protection class: IP2X Type test: IEC standards Dimension: 1400x2800X2800 mm

415V Switchgear and Excitation,Control and Protection Integrated Panels

for 2 sets of 415V Turbine-Generator Unit

 

12kV Switch Cabinets for 2 Sets of 11kV Turbine-Generator Unit

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Main Step-up Transformers

New S9 11KV Step up Main Transformer Capacity: 50 –1,600KVA		36KV Step up Main Transformer Capacity: 50 –16,000KVA
110KV Step up Main Transformer Capacity: 6,300 – 63,000KVA		220KV Step up Main Transformer Capacity: 6,300 – 63,000KVA

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