What are the technical requirements for electric welding of vibrating screens?
The production of a vibrating screen cannot be separated from the work of electric welders. A good-quality vibrating screen requires a very high level of welding technology. Next, the vibrating screen manufacturer will explain the welding technical requirements of the vibrating screen.
Reasonable welding sequence is critical, and attention should be paid to shortening the length of each repair welding. Welding in a reasonable sequence can not only narrow the scope of heat affected zone and 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, the segmented backward method, segmented reverse symmetry method, and segmented staggered skip method are used to repair the screening machine. For the parts that need to be filled with more metal, the multi-layer surfacing can be used.
(1) Step back method. It is often used for welds with short cracks. Before welding the screening machine, divide the weld into appropriate segments, mark the sequence, and move backward. The repair welding of the weld edge section shall be carried out from the end of the crack to the center, and the welding of other sections shall be carried out in the way of an end-to-end connection.
(2) Segmental reverse symmetry method. It is mostly used for the weld with long cracks in the screening machine. The weld shall be divided into several symmetrical segments, and the sequence shall be marked for repair welding. During the repair welding of the screening machine, sections 1 and 2 start at the crack center and are welded from both sides to the center. The other sections are welded by the method of an end-to-end connection.
(3) Step by step. This repair welding process is basically the same as the above two methods. It also divides the weld into many sections and tries to start welding at the lower temperature of the base metal of the weld.
(4) Repair welding of leafy cracks. When repairing and welding the blade cracks of the screening machine, different measures should be taken according to the position of the cracks on the weldment and the situation of the branch lines. In principle, the short branch lines should be repaired first, and then the long main lines should be repaired; Secondly, segmented welding or skip welding shall be selected according to the crack length, and welding shall be carried out according to the cold welding process without preheating.
Applicable industries
Chemical industry: resin powder, pigment, washing powder, micro powder, paint, soda ash, lemon powder, rubber, plastic, etc.
Abrasives, ceramic industry: alumina, quartz sand, mud, sprayed soil particles, etc.
Food industry: sugar, salt, alkali, monosodium glutamate, milk powder, soy milk, yeast, fruit juice, soy sauce, vinegar, etc.
Paper industry: coating paint, clay mud, black and white liquid, waste liquid, papermaking liquid, wastewater recycling, etc.
Metallurgical industry: titanium oxide, zinc oxide, electromagnetic materials, metal powder, electrode powder, etc.
Pharmaceutical industry: Chinese medicine powder, Chinese medicine liquid, Western medicine powder, Western medicine liquid, Chinese and Western medicine granules, etc.
Environmental protection: garbage, human and animal excrement, and urine, waste oil, food wastewater, wastewater processing, etc.
Processing process
Production workshop
This is our inner workhouse.
some small equipment or parts will be made from here.
There are cranes, laser cutting machines, electric welding machines, platen machines, angle grinders, polishing machines, forklifts, and other equipment.
Packaging & Shipping
After you place the order and pay the deposit, we will start to arrange the production and contact the ocean freight transportation agency to reserve the position. Two days before the end of production, you need to complete the final payment. Then, we inform the ocean cargo transportation agent company that it is ready to come to the factory to pull the goods to the port. On the day of delivery, we will send the customer the factory video and pictures, and mark the corresponding English name of each product and product parts with a marker to prevent the customer from not knowing what each part is after receiving the goods. At the same time, we will put the English version of the product instructions in the cargo box. We generally select freight forwarders with preferential prices for customers to deliver goods for you. The shipping method can be FOB or CIF. You can also choose EXW, and then contact the goods agent company yourself.
Customer visit
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 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.
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