Фіксована флеш-рейка GHDG-800 & стрілочний зварювальний апарат оснащений високим джерелом живлення постійного струму. Призначений для використання на стаціонарних підприємствах для зварювання коротких рейок 500 метрів або більше, а також стрілочні переводи на рейки (such as high-manganese steel frogs) and large alloy parts. This versatile welding machine can weld any type of rails and frogs, ensuring accurate alignment and preventing rail slippage during the upset forging process. It also provides stable and uniform power supply performance. The GHDG-800 can be configured for continuous welding, pulsation welding, and preheating welding processes.
Частина А: Basic Information
The machine consists of various components including a water-cooling system, гідравлічна система, Головний зварювальний контур, Електрична система управління, зварювальна головка, software system, and other parts.
Частина Б: Scope of Application
This welding machine is primarily used for flash butt welding of large profiles, especially for welding turnouts and rails.
Частина C: How It Works
The welding machine features four independent clamping devices that accurately hold irregularly shaped workpieces in a horizontal position. It also has a centering function to adjust the relative position of the workpieces for precise butt welding. Під час зварювання, a strong DC current is supplied through the clamping electrode to reduce welding resistance. Once the welding surface reaches the required temperature, upsetting is performed to complete the welding process. The upsetting mechanism ensures even distribution of forging pressure for precise welding.
Частина D: Welding Range
The GHDG-800 is capable of welding turnouts and rails that comply with national standards in China, the European Union, Росія, Сполучені Штати, and other countries. This includes various combinations such as rails and rails, and rails and turnout frogs with austenitic or high-manganese steel spacers. The machine can weld cross sections up to 16,000 mm2 with a tensile strength of 800-1300 Н/мм2. The welding efficiency can reach a maximum of 20 joints per hour.
Частина Е: Технічні параметри
E.1 Вимоги до потужності
– Power Supply Voltage: 400±15В
– Number of Power Supply Phases: 3
– Power Supply Frequency: 50Гц
E.2 Трансформатор
– Transformer Capacity: 630 KVA
– Maximum Voltage Drop: 10%
E.3 Main Electrical Parameters of Welding Machine
– Transformer Rated Primary Voltage: 400V
– Phases of Primary Voltage: 3
– Frequency of Primary Voltage: 50Гц
– Auxiliary Voltage: 230V
– Phases of Auxiliary Voltage: 2
– Frequency of Auxiliary Voltage: 50Гц
– Transformer Power Rating: 580 Ква
– Коефіцієнт тривалості запуску (ЕД): 50%
– Secondary Idling DC Voltage: 7.7V
– Етапи трансформування трансформаторів: 1
E.4 Technical Parameters of Mechanical Parts
– Maximum Upset Force: 1000 Кн
– Clamping Force: 2000 Кн
– Electrode Pressure: 1000 Кн
– Clamping Stroke: 120 Мм
– Upset Stroke: 50 Мм
E.5 Technical Parameters of Hydraulic System
– High Pressure (Pump Pressure): 140 Бар
– Low Pressure: 40 Бар
– System Pressure: 130 Бар
– Accumulator Charge Pressure: 40 Бар
– Volume Flow with Pump Pressure: 190 л/хв
– Fuel Tank Capacity: 400 L
E.6 Technical Parameters of Water-Cooling System
– Water Quality Requirements: Clean, Відфільтровані, без кальцію, нейтральний до низьколужного
– Текти: 150 л/хв
– Cooling Water Pressure: 4-6 Бар
– Entry Water Temperature: Макс 25 °C
– підвищення температури,: 7 °C
– Cooling Power: 63000 ккал/год
– Filtration Accuracy: 100 мкм
– dH – цінність, Total Hardness: 9-15 °
– dH – цінність, Carbonate Hardness: Макс 9 °
– Рн – цінність: 7-8
– Solid Fraction: Макс 50 мг/л
– Sum of Salts (Sulfates/Nitrates/Chlorides): Макс 70 мг/л
Part F: Main Features
– Utilizes high power DC welding for low welding resistance
– Equipped with an independent three-stage cooling system for easy maintenance, monitoring, and high cooling efficiency while preventing cross-contamination
– Features closed-loop automatic alignment for high alignment accuracy
– Includes fault self-diagnosis capabilities
– Incorporates temperature detection and thermal compensation
– Offers multiple welding processes to adjust according to specific requirements
