What are the welding technical requirements of vibrating screen
The production of vibrating screen is inseparable from the pay of welders. A good quality shaker requires very high workmanship from the welder. The following vibrating screen manufacturers to explain the technical requirements of vibrating screen welding.
Reasonable welding sequence is very important, and pay attention to shorten the length of each repair welding. Welding in a reasonable order can not only narrow the range of heat affected zone, reduce the degree of uneven temperature distribution, but also make the stress and deformation tend to be uniform. Generally according to the crack location, crack length and other conditions, respectively using the subsection backward method, subsection reverse weighing method, subsection interleaved jump method for welding repair screen machine. For the parts that need to be filled with more metal welding, multi-layer surfacing can be used.
(1) Step backward method. It is often used for welding seams with short cracks. Before welding, the screen machine will divide the weld into appropriate sections, indicate the order, and step back. The repair welding of the edge section of the weld is carried out from the end of the crack to the center direction, and the welding of other sections is carried out by the method of end to end.
(2) segment inverse weighing method. It is used for screening machine long crack weld, the weld is divided into a number of symmetrical segments, indicating the order, repair welding. When the screen machine is repaired, the number of 1 and 2 sections begins at the crack center and is welded from both sides to the center. The remaining sections are welded by the head-to-tail method. (3) segmental staggered interhop method. This repair welding process is basically the same as the above two methods, which also divides the weld into many sections and starts welding from the lower temperature of the weld base metal as far as possible. (4) Repair welding of blade cracks. Repair welding screen machine blade crack, first of all, according to the crack on the welding parts and branch grain situation to take different measures, in principle is the first repair welding short branch grain, after repair welding long main grain; Secondly, according to the length of crack selection of subsection welding or hop welding, and in accordance with the non-preheating cold welding process welding.
FAQ
1. Who are we?
Our headquarters is located in Henan, China, and our factory was established in 2002. At present, there are more than 100 workers, technical engineers, foreign trade sales personnel, and administrative personnel. The factory covers an area of more than 2000 square kilometers and is mainly engaged in vibrating screening and conveying and feeding equipment.
2. How do we guarantee the quality?
Always provide pre-production samples before mass production; Always carry out a final inspection before shipment.
3. What can you buy from us?
You can purchase a vibrating screen, roller screens, rotary screens, vacuum conveyors, mixer, and customized vibrating machinery and conveying equipment in our factory.
4. What are our strengths?
As one of the old enterprises in the screening industry, Tianfeng has provided a large number of screening equipment and systems at home and abroad. Mass production, rapid delivery, stable quality, affordable price, and excellent after-sales service have become the symbols of Tianfeng.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW, CIP, FCA, CPT, DDP, express;
Accepted payment currency: USD, EUR, RMB;
Type of payment accepted: telegraphic transfer, letter of credit, express remittance, credit card, PayPal, Western Union remittance, cash, custody;
Oral: English, Chinese, French.
6. What information do we need to help you choose a perfect machine?
-Name and characteristics of raw materials.
-Purpose of use: remove impurities, filter, and grade.
-Processing capacity: kg/h, L/h.
-Raw material size: (mesh or mm).
-How many floors do you need?
-Voltage, frequency, phase (single-phase or three-phase) Note: You'd better send us the relevant pictures or materials you want to filter, which can ensure that we recommend the appropriate machine for you.
(2) segment inverse weighing method. It is used for screening machine long crack weld, the weld is divided into a number of symmetrical segments, indicating the order, repair welding. When the screen machine is repaired, the number of 1 and 2 sections begins at the crack center and is welded from both sides to the center. The remaining sections are welded by the head-to-tail method. (3) segmental staggered interhop method. This repair welding process is basically the same as the above two methods, which also divides the weld into many sections and starts welding from the lower temperature of the weld base metal as far as possible. (4) Repair welding of blade cracks. Repair welding screen machine blade crack, first of all, according to the crack on the welding parts and branch grain situation to take different measures, in principle is the first repair welding short branch grain, after repair welding long main grain; Secondly, according to the length of crack selection of subsection welding or hop welding, and in accordance with the non-preheating cold welding process welding.
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