Classification of test samples
Classification of base: detachable、 fixed
Classification of arm body: sliding in、 card type
Classification of door panel covering position: full cover (straight bend、 straight arm) generally covers 18 cm、 half cover (medium bend、 curved arm) covers 9 cm、 and all hidden door panels (large bend、 large bend) are hidden inside
Development stage classification: one stage force hinge、 two stage force hinge、 hydraulic buffer hinge、 touch self opening hinge、 etc p> Classification of door opening angles: 95-110 degrees、 special ones include 25 degrees、 30 degrees、 45 degrees、 135 degrees、 165 degrees、 180 degrees、 etc p> Other categories: ordinary first and second stage force hinges、 short arm hinges、 26 cup micro hinges、 marble hinges、 aluminum frame door hinges、 special angle hinges、 glass hinges、 rebound hinges、 American hinges、 damping hinges、 thick door hinges、 etc p>
Testing items
Quality testing、 torque testing、 roughness testing、 durability testing、 mechanical performance testing、 etc p>
Partial Inspection Standards
Technical Conditions for CB/T 3661-1994 Marine Hydraulic Hinges
CB/T 3734-1995 Technical Requirements for Repairing Hinged Mud Doors of Trailing Suction Dredgers
CB/T 4273-2013 Hydraulic Hinged Fireproof and Watertight Doors
HB 1-106-2002 Smooth Rod Tolerance Zone f7 Small Hexagonal Head Bolts for Hinge Connection
HB 410-1971 Hinge Pressing Plate
HB 2494-1977 Hinge Pipe Clamp
HB 2994-2000 HingeHB 2995-2000 hingeHB 3646-198 5 horizontal hinge lever
HB 3647-1985 hinge spring lever
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