Shanghai Weitao automation equipment Co., Ltd
Contact person: Mr. Lu
Address: 2312 Weiqing East Road, Shanyang Town, Jinshan District, Shanghai
Brief introduction to comprehensive scratch test of multi-function scratch tester
Take the initiative to test the wear resistance of smooth and textured plastic parts inside and outside the car
The instrument is suitable for testing the scratch resistance of various automotive interior materials, such as plastic, rubber, leather, fabric, coated materials, non-coated materials and other composite materials.
The abrasion resistance instrument for the smooth and textured plastic decorations in the inside and outside of the car is composed of two parts of the scraping device. The left part can do the five-finger/plastic finger scraping test, and the right part can do the hundred-case method scraping test.
The two share a reciprocating platform.
The instrument meets a variety of test standards, and can be customized according to customer requirements of the test platform travel, speed and reciprocating motion cycle.
Principle of scraping:
The multi-function scratch resistance tester for automobile interior decoration is applicable to all kinds of scratch performance test instruments for automobile interior decoration materials. The instrument integrates three domestic test standards (five-finger scratch method, hundred-lattice method, plastic scratch finger scratch method).
This test method is used to test the resistance of surface materials to damage caused by scratching.
According to the nails or other hard objects that may be contacted during the use of the materials, the scraping fingers of different materials are adopted. According to the specified direction, stroke and speed, the scraping head ACTS on the surface of the sample with a certain pressure, and the scraping head and the sample move relative to each other, so as to produce a one-way, non-reciprocating straight scraping track, and keep parallel between the scratches.
Zui will evaluate the sensory grade of scratches, the color difference between the scraped and unscraped areas, or the zUI's small scraping force when the sample surface is damaged.
The instrument is composed of motor driving mechanism, scraping assembly, sample clamping and fixing device, etc.
The scraper assembly includes a scraper bracket, a scraper finger, a designated scraping sleeve, a pressurizing device (weights and weight support rods), etc.
The instrument can be freely installed, replaced and disassembled with different specifications of scraping fingers, which can carry out uniform one-way linear scraping movement under different loads.
The instrument adopts embedded system and man-machine interface operation to automatically control the test process, and adopts precise servo motor and ball screw drive, which plays a decisive role in the accuracy of scraping speed control under relevant standards.
The instrument is made of aluminum alloy and stainless steel with a simple, light and corrosion-resistant appearance.
GB/T 2918 Standard environment for state regulation and testing of plastic Specimens
GB/T 6151 Color fastness Test - General test principles
GB/T 8424.3 Color fastness test color difference calculation
PV3952 Public Test method for scratch resistance
Surface testing of GS97034 automotive interior materials, etc
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 accurately 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
8. Overall dimension: 770×550×500mm
9. Weight: 50Kg
10. Power source AC220V±10% 50Hz
Based on the automotive industry standard technical requirements and design
The test sample is fixed on a compressed air driven test platform.
Five independent shaft rod scraping fingers, which can be replaced with different weights and optional scraping fingers, are applied on the test sample surface.
The scraper is mounted on a hard bench, and the operator can fix the specified scraper in the balance position through the bracket, so that the sample with irregular width can also be tested.
In addition to material and product development, it also applies to quality control
Design of five-finger scratch/scratch tester
It's for the plastic assessment.
Hard materials for wear resistance, paints, inks, soft metals, oil carpets and other materials.
Five finger test principle
Five fingers/plastic fingers Scraping test: The specimen on the test platform touches five or one plastic 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.
Scratch test by the hundred lattice method: The purpose of the test is to detect the resistance of paint to scratch shedding.
The ordinary hundred-lattice method is manual testing, and the operation is time-consuming and laborious.
This instrument is driven by two motors to control the length of scratches and the distance between scratches.
Reciprocating motion process is: the first stage test, mobile platform movement (half a circle) at a time, cylinder scraping refers to lift, motor drive the scraping refers to the longitudinal mobile distance, cylinder scraping refers to put down, and then moving platform movement (half a circle) at a time, cylinder scraping refers to lift, motor drive the scraping refers to the longitudinal mobile distance again, and again.
When the specified number of lines is crossed, manually rotate the test plate 90 degrees and complete the test after the second stage test.
This instrument can realize delimit interval 2.0 MMM, meeting the requirements of the standard
FIG. 1 Detail drawing of the pattern section when the scratch distance is 2mm
This multi-functional wear tester meets the following standards:
FORD FLTM BN 108-13
GMW 14698 (B)
GM 14688 (A)
GM 14688 (B)
FORD FLTM BN 108-13
GMW 14698 (B)
Nissan NES M0159
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.