BAIJIAN - Third party testing organization
Baijia.net specializes in spring testing、 and our platform's testing institutions cover the entire testing industry. Online one-on-one service. The test report is delivered on time and with good quality、 and you can enjoy the report delivery service. On the Baijian platform、 customers can complete the inspection process online from ordering services、 submitting commission information、 and finally paying the inspection fee、 without leaving the house. Next、 I will briefly introduce the testing standards and process of Baijia.net for spring testing
Spring steel、 gas springs、 disc springs、 air springs、 damping springs、 compression springs、 spring springs、 shock absorption springs、 mold springs、 coil springs、 suspension springs、 diaphragm springs、 etc
Spring inspection items
Spring material analysis、 wire diameter (micrometer)、 inner/outer diameter (caliper)、 height (caliper)、 pressure (load test)、 tension (load test)、 torque (torque test)、 appearance (visual inspection)、 surface quality、 durability life (durability test)、 spring stiffness、 torque stiffness、 bending、 load、 spring modulus、 deformation、 spring damping coefficient test、 safety factor、 bending section coefficient Torsional section coefficient、 fatigue test、 relaxation rate detection、 fracture failure analysis、 corrosion resistance test、 metallographic structure detection、 microstructure detection、 parallelism、 verticality、 straightness detection、 coating thickness detection、 tensile testing、 fatigue life detection、 thimble detection、 stiffness test、 rebound testing、 tension and compression testing、 torque testing、 salt spray testing、 torque testing、 stiffness coefficient testing、 hardness testing、 torsional rigidity testing、 Tensile strength testing、 compression force testing、 cleanliness testing、 leakage testing、 tensile strength testing、 stiffness testing、 permanent deformation testing、 damping testing、 fracture failure analysis、 corrosion resistance testing、 load characteristic testing、 flaw detection testing、 metallographic testing、 stiffness coefficient testing、 load displacement testing、 fatigue life testing、 tension and compression testing、 torque testing、 salt spray testing、 reliability testing、 etc
Spring Testing Standards
GB/T 1239.1-2009 Technical Conditions for Cold Rolled Cylindrical Helical Springs Part 1: Tension Springs
GB/T 1239.2-2009 Technical Conditions for Cold Rolled Cylindrical Helical Springs Part 2: Compression Springs
GB/T 1239.3-2009 Technical Conditions for Cold Rolled Cylindrical Helical Springs Part 3: Torsion Springs
GB/T 1972-2005 Belleville Springs
GB/T 1973.1-2005 Technical Conditions for Small Cylindrical Helical Springs
ConditionsGB/T 2861.6-2008 Guide Devices for Stamping Dies - Part 6: Cylindrical Helical Compression Springs
GB/T 3279-2009 Spring Steel Hot-rolled Steel Plates
GB/T 4357-2009 Cold-drawn Carbon Spring Wire
GB/T 9074.15-1988 Hexagon Head Bolt and Spring Washer Assembly
GB/T 13828-2009 Multi Strand Cylindrical Helical Springs
GB/T 16947-2009 Helical Spring Fatigue Test SpecificationGB/T 20914 . 1-2007 Die Nitrogen Springs - Part 1: General Specifications
GB/T 20914.3-2019 Die Nitrogen Springs - Part 3: Compact and Strong Nitrogen Springs
GB/T 20914.4-2019 Die Nitrogen Springs - Part 4: Equal High Strength Nitrogen Springs
GB/T 23925-2009 Three wheeled Vehicles and Low Speed Freight Car Leaf Springs
GB/T 23934-2015 Hot Rolled Cylindrical Helical Compression Springs - Technical Conditions
GB/T 24588-2019 Stainless spring steel wire
The testing advantages of BAIJIAN Research Institute
Strength guarantee: collectively owned scientific research institute、 with complete scientific research projects Free initial inspection: Free initial inspection allows you to have a worry free testing experience Shorter cycle: Test reports can be issued within 7-10 working days
High quality service: Engineers provide one-on-one service and follow up on the entire project Advanced technology: A doctoral team with over 300 imported equipment from Europe and America Strict and fair: a cooperative unit of the public security、 procuratorial and legal departments、 scientific and accurate Multiple branches: accept nationwide on-site sampling/sample sending services One click query: supports scanning for authenticity and high recognition of reports
Report purpose of BAIJIAN Research Institute
Sales: Issue testing reports to commission product competitiveness.
R&D: Shorten the R&D cycle and reduce R&D costs Quality: Determine the quality of raw materials and reduce production risks Diagnosis: Identify the root cause of the problem and improve product quality Research: Customize a complete plan and provide raw dataBidding: The report has high recognition and improves the success rate of bidding
Testing Process of Baijia.net Research Institute
1. Consulting engineers and submitting testing requirements 2. Sample delivery/mailing 3. Free initial inspection and quotation 4. Sign contracts and confidentiality agreements 5. Conduct scheme customization and experiments 6. Provide experimental results and testing reports 7. More value-added services
The above article is a partial list. For more testing needs and details、 please consult the online consultant of the free consultation institution: 19121017521 (phone and WeChat)、 and conduct testing on the top 100 inspection websites. Issuing authoritative testing reports has legal effect
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