Vacuum Pressure Pouring Equipment Vacuum Resin Casting Machine VPI System

TECHNICAL SCHEME  OF  VACUUM CASTING EQUIPMENT

According to the user's production needs and the company's years of accumulated experience in manufacturing pouring equipment and design specifications, the following technical scheme is determined for further discussion and negotiation between both parties.

The proposed equipment is suitable for vacuum casting of transformer with two component premixed epoxy resin.

1. GENERAL PROVISIONS

1. This proposal proposes the technical requirements of the design, structure, final assembly, test and operation of the equipment.
2. This proposal sets out the minimum technical requirements, and the supplier shall provide high-quality products not lower than this specification.
3. After the Contract takes effect, the Supplier shall provide the Demander with a production schedule that meets the requirements of the contract delivery date.
4. The equipment layout drawing, basic condition drawing, electrical drawing and main component structure drawing provided by the supplier shall not be put into operation until confirmed by the demander. The supplier shall unconditionally modify the problems that do not meet the requirements of this technical specification in the drawings.
5. The equipment specification shall include the working principle, structure, installation instructions, operation methods and precautions, common faults and solutions, suppliers, models and specifications and other relevant technical data of the whole equipment and all important systems.
6. The Supplier shall be responsible for the performance and operational reliability of the equipment, as well as the design, manufacturing, transportation, installation, commissioning and trial production of the equipment. Implementation of the turnkey project.
7. The Supplier guarantees to provide applicable, mature and proven technology for pouring equipment.

The spare parts and spare parts which can operate normally within one year will be given free of charge.

2. THE DESIGN OF THIS SET OF EQUIPMENT ADOPTS THE FOLLOWING RELEVANT STANDARDS, MANUALS AND STANDARDS.

1. This technical specification for Vacuum Pouring Equipment
2. GB9115.1-2000 "Vacuum Flange"
3. JB/T6533-97 Rotary Vane Vacuum Pump
4. Roots Vacuum Pump JB/T7674-95
5. GB/T6709-96 "Vacuum Pipe and Accessories"
6. JB1090-1092 "Rubber Seal Type and Size for Vacuum"
7. GB191 "Graphic Symbol of Packaging, Storage and Transportation"
8. Vacuum Design Manual, Lanzhou Institute of Physics
9. Vacuum System Design Manual, Northeastern University
10. GB/T5226.1-1996 "Industrial Machinery and Electrical Equipment Part I: General Technical conditions";

3. EQUIPMENT CHARACTERISTICS

1. The vacuum pouring equipment in this scheme is applicable to the vacuum pouring treatment of pouring transformers and reactors.
2. This scheme reflects the requirements of energy saving and environmental protection. The life of the specially manufactured electric heating plate is more than 3 times that of the imported German heating plate, and the heating power is 75% of the imported German heating plate. Is the real sense of energy saving, environmental protection products.
3. Unique filtration system, can effectively prevent resin steam into the vacuum pump.

4.TECHNICAL PROPOSAL

1. EQUIPMENT COMPOSITION

2. TECHNICAL INDICATORS AND PARAMETERS OF EQUIPMENT:
   1. Vacuum pouring pot size Φ2000×L2400
   2. The pumping speed of the main pumping pump of the vacuum system is 300L/S
   3. Working temperature of pouring tank is 70 ~ 85℃
   4. Ultimate vacuum degree of pouring tank (cold state, no load) ≤50Pa
   5. Pouring tank leakage rate ≤50Pa.L/S
   6. The working vacuum of pouring tank is 50 ~ 100Pa
   7. The equipment adopts manual metering and dynamic mixing of materials.
   8. The equipment adopts vacuum casting process.
   9. The mixing tank adopts electric heating, heat conduction oil as heat transfer medium and automatic temperature control. The pouring tank is directly heated by electric heating element. All heating parts are insulated with thermal insulation materials, and the pouring tank is armored with stainless steel plate (SUS430); The mixing tank is armored with thin steel plate and coated on the surface. The surface temperature of the insulation layer is not higher than 20℃ room temperature.
3. EQUIPMENT POWER, WATER, AIR SOURCE AND BASIC CONDITION

REQUIREMENTS, (USER EQUIPPED WITH: POWER SUPPLY, AIR COMPRESSOR):

1. Rated power: 80kw, 380V, 50Hz, three-phase five-wire special distribution cabinet, power connected to the electric control cabinet.
2. Water source: pressure ≥0.2Mpa, maximum consumption 3m3/h, water temperature ≤25℃.
3. Compressed air: 0.4 ~ 0.6Mpa, maximum consumption of 0.3m3/min
4. Make foundation, steel frame and outer track of embedded tank according to our design drawings.

4. TECHNICAL CONDITIONS OF EACH SYSTEM:
   1. A SET OF 400L VACUUM MIXING DEGASSING TANK

Technical specification and application of tank

The effective volume is 400L

Heat conduction oil 10KW

Ultimate vacuum: 50Pa (no load, cold state)

No load leakage rate: 50Pa.L/S

Operating temperature: 60 ~ 80℃

Tank surface temperature Ambient temperature +20℃

Equipped with frequency control device, can adjust the stirring lifting speed according to the viscosity of the material;

Rock wool insulation, stainless steel plate (SUS430, 1.5mm thick) armored, surface coating

This tank is used for mixing epoxy resin and curing agent mixture and vacuum degassing.

The mixing tank is installed on the pouring master side of the vacuum pouring tank to increase production.

TANK BODY ACCESSORIES:

400L MIXING TANK:

4.2 A SET OF VACUUM POURING TANK (ATMOSPHERIC PRESSURE) SYSTEM Vacuum tank technical specifications and uses:

Horizontal tank inner wall size: Φ2000mm×2400mm

Ultimate vacuum: 50Pa (no load, cold state)

No load leakage rate: 50Pa.L/S

Operating temperature: 70 ~ 85℃

Tank surface temperature: ambient temperature +20℃

The casting supervisor adopts pneumatic ball valve for feeding, and can adjust the vacuum casting valve actually needed according to the number of products. The spare flange interface of the casting pipe is reserved for future upgrading.

The pouring tank is horizontal, the door of the tank is swung open on the side, and the tank body is of vacuum pouring tank structure. After the door is closed in place, the tank is clamped.

The vacuum casting process can optimize the casting process, increase the permeability of the material, and finally achieve the effect of reducing the release index of the product.

Lock the can card manually after the can door is closed in place.

The tank body is installed on the ground, and light rail and working trolley (reinforced) are provided in the tank.

The outer surface of the tank is heated by electric heating plate.

The height of the track inside the tank is flush with the track of the transfer trolley outside the tank (self-made by the user of the transfer trolley outside the tank), so as to facilitate the access of the trolley;

Rock wool insulation, stainless steel plate (SUS430) armored processing.

The tank body is provided with other interfaces to meet the technological requirements.

TANK ATTACHMENT

VACUUM CASTING EQUIPMENT

4.3 TWO SETS OF HEATING SYSTEM

4.3.1 Each unit of the equipment is controlled by an independent temperature control system, which is convenient for each unit to adjust the temperature. The mixing tank adopts heat transfer mode of heat conduction oil. The pouring tank is directly heated by Wuxi electric heating plate, automatic temperature control, overtemperature alarm, 63KW power, the highest heating temperature of 130℃. The heating temperature of all the mixing tank heating system can be adjusted between normal temperature and 80℃.

SYSTEM CONFIGURATION:

HEATING SYSTEM FOR 400L FINAL MIXING TANK:

HEATING SYSTEM FOR VACUUM POURING TANK:

4.4 TWO SETS OF VACUUM SYSTEM (A TOTAL OF 3 VACUUM PUMPS):

4.4.1. The maximum pumping speed of a rotary sheet Roots unit to the pouring tank vacuum unit is 300L/S. The working vacuum of the system can be controlled between 50-200Pa; Reduce the possibility of material being pumped into the vacuum system due to high vacuum degree; The system is equipped with 2 sets of special filters to prevent impurities in the pumped gas to the maximum extent and capture condensing condensable gas to protect the vacuum pump.

CONFIGURATION ATTACHMENT:

SYSTEM CONFIGURATION ATTACHMENT: