BAIJIAN - Third party testing organization
During the welding process、 the workpiece and solder melt to form a molten zone、 and after the molten pool cools and solidifies、 a connection between the materials is formed. During this process、 pressure is usually required. There are many sources of energy for welding、 including gas flames、 arcs、 lasers、 electron beams、 friction、 and ultrasound. Before the end of the 19th century、 the only welding process was metal forging and welding、 which blacksmiths had been using for hundreds of years. The earliest modern welding technology appeared in the late 19th century、 first arc welding and oxygen combustion gas welding、 and later resistance welding. In the early 20th century、 with the outbreak of World Wars I and II、 there was a great demand for cheap and reliable connection methods for military equipment、 which promoted the development of welding technology. Today、 with the widespread application of welding robots in industrial applications、 researchers are still delving into the essence of welding and continuing to develop new welding methods to further improve welding quality
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific、 fair、 and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsinspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered、 meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing、 with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle、 low cost、 and attentive service 7. Possess authoritative qualifications such as CMA、 CNAS、 CAL、 etc 8. The testing report is authoritative and effective、 and is generally used in China