15921758826
15921758826
Shanghai Weitao automation equipment Co., Ltd
Contact person: Mr. Lu
Tel: 15921758826
Address: 2312 Weiqing East Road, Shanyang Town, Jinshan District, Shanghai
Five-finger scratch tester
A list,
The tester is widely used in automobile industry.
It is mainly used to test the wear resistance of smooth and textured plastic parts inside and outside the car.
In addition to material and product development, it also applies to quality control.
The five-finger scratch/scratch tester is designed for plastic material assessment, hard material abrasion resistance, paint, ink, soft metal, oil carpet, accessories and other materials. The tester meets a variety of test standards, and can be customized according to customer requirements of the test platform travel, speed and reciprocating movement cycle.
Five finger scratch tester test: The specimen on the test platform touches five fingers or one plastic scratch finger and the weight applied above it.
During the test, the test platform moved and the scratch finger left scratches on the surface of the sample.
According to the depth of the scratch to determine the sample scratch resistance performance.
Samples may be plastic sheets, test sheets coated with paints and varnishes, etc.
Second, the principle of testing
Five finger scratch tester test: The specimen on the test platform touches five fingers or one plastic scratch finger and the weight applied above it.
During the test, the test platform moved and the scratch finger left scratches on the surface of the sample.
According to the depth of the scratch to determine the sample scratch resistance performance.
Samples may be plastic sheets, test sheets coated with paints and varnishes, etc.
Iii. Technical Parameters:
1. Stroke range: 10-200mm
2. Speed range: 10-200mm/s
3. Speed buffer: 10±1mm
4. Diameter of metal scraping head: 0.5mm, 0.75mm, 1mm(Erichen 318), 3mm, 5mm, 7mm
5. Metal scraping head material: Tungsten carbide is used as the scraping finger to reasonably detect the surface wear damaged by unconventional definition of physical forms (such as scraping, scratching, gouging, etc.).
6. Total weight of pressurized weights and scraping components: 2N, 3N, 5N, 7N, 8N, 10N, 12N, 15N, 20N (optional) Mass error not exceeding 1%; additionally, customized weights are optional
7. Plastic scraping refers to PMMA with a diameter of 16mm and a thickness of 1mm. The radius of the edge of the scraping refers to 0.5mm and the hardness is SHORE D852
Iv. Test standards
The paragraph meets the following criteria:
FORD FLTM BN 108-13
GMW 14698 (B)
FORD BO-162-01
5. In terms of the evaluation of scratch test results, common test methods can be divided into visual evaluation methods and instrument evaluation methods:
The visual rating method is to place the test sample under the northern sky daylight or the artificial D65 light source, and the test sample is in a horizontal state relative to the evaluator. If necessary, the sample is rotated to obtain the most extreme viewing Angle. For the linear scraping, only 80% of the middle part is evaluated during the evaluation process.
The evaluation content mainly includes whether there is damage scratch on the surface of the test sample, whether the material is deformed, whether there is cracking, hairiness and other phenomena.
According to the difference of material, the standard on evaluation grade also differs accordingly.
The instrument rating method mainly evaluates the color and luster changes of test samples according to the optical instrument.
A. Color change.
Have different measuring method and examining index, for example, according to the ISO 7724 or other similar to standard method, using CIELAB chroma space, in 10 ° observer, D65 lighting light source, including the land surface gloss ingredients, integrating sphere measurement a few 7724-2 or other similar standard method, using CIELAB chroma space, in the observer, D65 lighting light source, 450/00, or 100 0 ° / 45 ° under the condition of a few what measurement test samples after scraping the color change of the area and not scratch parts, namely, delta, delta L * a *, and chromatism delta delta h * * E.
B. Changes in luster.
Measure the change of 600 or 200 specular gloss between the scraped and unscraped parts of the test sample in accordance with ISO 2813 or other similar methods.
Founded in 2011, Shanghai Huitao is a team of experienced engineers and emerging design experts. The company focuses on R & D, design and production of high quality laboratory instruments for textile testing. Headquartered in Shanghai, the company provides high-quality testing instruments and high-quality professional services for companies, academic research institutions and testing institutions of various countries.
Shanghai Huitao continuously launched products to meet the experimental needs of the textile industry. It has advanced microclimate comfort test equipment, such as thermal manikin, thermal and humidity resistance tester, MMT and other test equipment. Meanwhile, it also provides air permeability tester, hydrostatic pressure tester and thermal protective clothing performance test equipment required for new product development. In addition, we have developed and produced many basic textile testing instruments, including washing color fastness tester, fabric abrasion tester, pilling tester, rubbing color fastness tester, ironing fastness tester and perspiration color fastness tester. These high-quality products are widely used in textile testing field. In order to meet the experimental needs of users, we also provide you with innovative and practical testing instruments. The products include fiber tester, yarn tester, fabric tester, carpet tester, geotextile tester and other related testing equipment.
The company sells our products through distributed distribution partners who provide high-quality products, services and support to our customers all over the world. All the products are in line with international quality standards and specifications, and can perform outstanding and accurate product performance.
