BAIJIAN - Third party testing organization
Steel bars、 as one of the widely used materials in current construction projects、 are also one of the important keys in the design and construction of building structures through their connection methods. The joint forms of steel bars include binding connection、 welding connection、 and mechanical connection. Mechanical connection is divided into straight thread sleeve、 conical thread sleeve、 sleeve extrusion、 and sleeve grouting. Currently、 binding connection and straight thread sleeve connection are commonly used on construction sites. Binding connection is generally used for small specification steel bars with a diameter of less than 16mm、 while sleeve connection is suitable for steel bars with a diameter of more than 16mm
Sleeve joint is a connection method that transfers the force of one steel bar to another steel bar through the mechanical interlocking effect between the steel bar and the connecting piece.
. Generally speaking、 sleeve connection has better connection performance than binding connection and welding connection、 but steel bar joints are ultimately weak points、 and their force transmission performance (strength、 deformation、 restoring force、 failure state、 etc.) is not as good as the entire steel bar that directly transmits force. Any form of steel bar connection will weaken its force transmission performance. Therefore、 it is particularly important to regulate and limit the quality、 position、 quantity、 and connection method of joints
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