BAIJIAN - Third party testing organization
The mechanical performance testing project of metals is in the mechanical manufacturing industry、 and the mechanical performance testing indicators of metals generally include strength、 hardness、 plasticity、 and toughness. （1） Strength: Strength is the ability of a metal material to resist plastic deformation and fracture under external forces. There are generally many evaluation indicators for strength、 and the most commonly used ones in the mechanical industry are tensile strength and yield point (also known as yield strength). 1. Yield point（ σ S or σ 0.2) It refers to the stress that causes the tensile specimen to yield. For many metal materials without obvious yield phenomenon、 engineering regulations stipulate that the yield point of the material is the stress at which the sample undergoes 0.2% plastic deformation. The deformation of metals below the yield point is essentially elastic deformation; The deformation of the metal above the yield point belongs to plastic deformation. Author: Hidden Stone Metal Testing - Han https://www.bilibili.com/read/cv17246859 Source: Bilibili
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