BAIJIAN - Third party testing organization
Adhesive strength test:
1. Tensile strength: Tensile strength、 also known as uniform tensile strength or positive tensile strength、 refers to the tensile force per unit area borne by the adhesive when it is subjected to force failure. Because the tensile force is much more uniform than the shear force、 the tensile strength of general adhesives is much higher than the shear strength
2. Peel strength: Peel strength refers to the load that can be borne by a unit width of the adhesive when it is separated under certain peeling conditions. There are various forms of peeling、 which can generally be divided into U-shaped peeling、 L-shaped peeling、 T-shaped peeling、 and curved surface peeling. The peel strength is influenced by factors such as the width and thickness of the specimen、 peel strength、 adhesive layer thickness、 and peel angle 3. Shear strength: Shear strength refers to the shear force that a unit of adhesive surface can withstand when the adhesive component is damaged. Shear strength can be further divided into torsional shear、 tensile shear、 compressive shear、 and bending shear strength according to the stress mode during testing Adhesives with different properties have different shear strengths. In general、 ductile adhesives have higher shear strength than flexible adhesives. Numerous experiments have shown that the thinner the adhesive layer、 the higher the shear strength 4. Impact strength: Impact strength refers to the maximum work consumed per unit of adhesive area when the adhesive component is subjected to impact load and fails. According to the different joint forms and stress modes、 impact strength can be divided into bending impact、 tensile shear impact、 torsional shear impact、 compressive shear impact strength、 etc. The better the toughness of the adhesive、 the higher the impact strength
5. Durable strength: Durable strength refers to the maximum load that a unit of adhesive area can withstand after enduring static load for a long time. Durable strength is influenced by loading stress and test temperature、 and decreases with the increase of loading stress and temperature
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