Classification
Among all kinds of polyurethane products、 polyurethane foam is the most important part. Its main feature is its porosity、 so its relative density is small and its specific strength is high. According to different raw materials and formula changes、 it can be made into soft、 semi-rigid and rigid polyurethane foam plastics; According to the type of polyol used、 it can be divided into polyester type、 polyether type and castor oil type polyurethane foam、 etc; If classified according to the foaming method、 there are block、 molding、 spraying polyurethane foam and other types p> Polyurethane rigid foam is generally room temperature foaming、 and the molding process is relatively simple. According to the degree of construction mechanization、 it can be divided into manual foaming and mechanical foaming; According to the pressure during foaming、 it can be divided into high-pressure foaming and low-pressure foaming; According to the molding method、 it can be divided into pouring foam and spraying foam P>
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