GHDG-800 ثابت فلاش بعقب السكك الحديدية & تم تجهيز آلة لحام الإقبال بمصدر طاقة عالي التيار المستمر. وهي مصممة للاستخدام في المصانع الثابتة لحام القضبان القصيرة من 500 متر أو أكثر, فضلا عن الإقبال على القضبان (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.
الجزء أ: Basic Information
The machine consists of various components including a water-cooling system, النظام الهيدروليكي, دائرة اللحام الرئيسية, نظام التحكم الكهربائي, رأس اللحام, software system, and other parts.
الجزء ب: Scope of Application
This welding machine is primarily used for flash butt welding of large profiles, especially for welding turnouts and rails.
الجزء ج: 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. أثناء اللحام, 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.
الجزء دال: Welding Range
The GHDG-800 is capable of welding turnouts and rails that comply with national standards in China, the European Union, روسيا, الولايات المتحدة, 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 N / مم 2. The welding efficiency can reach a maximum of 20 joints per hour.
الجزء هاء: المعايير الفنية
هاء-1 متطلبات الطاقة
– Power Supply Voltage: 400±15 فولت
– Number of Power Supply Phases: 3
– Power Supply Frequency: 50هرتز
E.2 محول
– 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: 50هرتز
– Auxiliary Voltage: 230V
– Phases of Auxiliary Voltage: 2
– Frequency of Auxiliary Voltage: 50هرتز
– Transformer Power Rating: 580 كيلو فولت أمبير
– عامل مدة بدء التشغيل (اد): 50%
– Secondary Idling DC Voltage: 7.7V
– مراحل تحويل المحولات: 1
E.4 Technical Parameters of Mechanical Parts
– Maximum Upset Force: 1000 كيلو نيوتن
– Clamping Force: 2000 كيلو نيوتن
– Electrode Pressure: 1000 كيلو نيوتن
– Clamping Stroke: 120 المليمتر
– Upset Stroke: 50 المليمتر
E.5 Technical Parameters of Hydraulic System
– High Pressure (Pump Pressure): 140 بار
– Low Pressure: 40 بار
– System Pressure: 130 بار
– Accumulator Charge Pressure: 40 بار
– Volume Flow with Pump Pressure: 190 لتر / دقيقة
– Fuel Tank Capacity: 400 L
E.6 Technical Parameters of Water-Cooling System
– Water Quality Requirements: Clean, تصفيه, خالي من الكالسيوم, محايد إلى منخفض القلوية
– تدفق: 150 لتر / دقيقة
– Cooling Water Pressure: 4-6 بار
– Entry Water Temperature: ماكس 25 °C
– ارتفاع درجة الحرارة: 7 °C
– Cooling Power: 63000 كيلو كالوري / ساعة
– Filtration Accuracy: 100 ميكرومتر
– درهم – قيمة, Total Hardness: 9-15 °
– درهم – قيمة, Carbonate Hardness: ماكس 9 °
– الرقم الهيدروجيني – قيمة: 7-8
– Solid Fraction: ماكس 50 ملغم / لتر
– Sum of Salts (Sulfates/Nitrates/Chlorides): ماكس 70 ملغم / لتر
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
