Scratch Resistance Tester Hot Products - Chinaprice: 1.00 Dollar US$
Introduction to Scratch Resistance Tester The application areas of the scratch resistance tester include: rigid organic materials, paint adhesives, powder coatings, anodized materials, soft metals, plastics and glass, etc.
It can also be used to test the adhesive quality of the same materials and protective coatings.
And the extreme performance of similar materials.
The instrument is composed of balance bar, fixed weight, adjustment weight, sample loading disc, etc.
Before the test, the height of the balance bar needs to be adjusted according to the thickness of the sample, so that the balance bar can be kept level after the scratching head is installed in the middle of the balance bar and the sample is installed on the sample loading disc.
During the test, the fixed weight does not move, and the adjustable weight is moved to control the weight pressed on the sample.
As the sample loading disc rotates counterclockwise, the scratching head leaves an arc-shaped nick on the surface of the sample.
1.1 Test standard This scratch resistance tester meets the following standards: lAS/NZS AS2924.2 lASTM C217 lBS EN 438.2 lBS EN 13310 lBS EN 14323 lDIN 68861-4 lDIN 53799 1.2 Test principle Place the sample in the groove of the thickness control device and adjust the position of the nut.
Install the sample on a rotatable circular platform and fix it with a pressure block and a nut.
Install the scraping head in the corresponding groove in the middle of the weighing beam.
Rotate the balance bar so that the head of the scratching head just touches the sample.
The instrument is started, the disc moves, and the scratching head leaves a scratch on the surface of the sample.
1.3 Instrument structure and function Balance rod adjustment components: This part includes thickness control device, height adjustment nut, front and rear position adjustment nut, balance rod composition.
The height of the balance bar is determined by the thickness of the specimen.
Before the test, insert the sample into the groove of the thickness control device, and adjust the height adjustment nut to make the sample fit in the groove.
When the sample is installed on the circular sample loading platform, after the friction head is installed in the balance bar, its head is against the sample.
At this time, the balance bar remains basically parallel, and only needs to be fine-tuned (place the horizontal bubble to see if it is level).
Some standards require that the test results be concentric circles with different radii.
Adjust the front and rear position control nuts to control the scratching head and sample loading.
The distance from the center of the disc, resulting in scores of different radii.
Control components: including counter, start button, pause button and power switch.
experiment procedure Sample preparation, the standard sample size is a square piece of 100mm*100mm, with edges and corners on all sides, and an opening with a diameter of 6.5 in the middle, as shown in the figure below Put the sample into the thickness control device, and adjust the upper bolt so that the upper surface of the sample is in contact with the lower surface of the thickness control device.
Remove the sample and place the sample on the test plate, tighten the nut on the sample, put down the balance bar, and place the horizontal air bubble on the balance bar to see if the balance bar is level.
If it is not level, adjust the back end Bolt makes the bubble level Move the weight at the right end to the required pressure position, and tighten the bolt at the back of the weight to prevent it from moving during operation.
Power on, select the number of running laps for the experiment, press the start button, and start the experiment.
Before loading the sample on the Taber 551 scratch tester, you need to adjust the weighing bar to a suitable height according to the thickness of the sample.
The precision cutting tool is installed on the weighing beam and placed on the sample.
Start the instrument and the turntable rotates at a constant speed to ensure accurate measurement results.
By changing the load of the cutting tool, you can evaluate the material's shear or scratch resistance.
The scale bar design of the Taber 551 Scratch Tester instrument allows it to be level with the sample and turntable, and can be raised or lowered according to actual needs.
In addition, the weighing rod can also be lifted and hung in the air to facilitate the operator to remove the sample.
By changing the position of the sliding weight, the total load on the sample can be adjusted in the range of 0-1000g.
The cutting tools can choose to use tungsten carbide tools or conical diamond heads.
The test results of Taber 551 Scratch Tester can be visually judged with a 10x magnifying glass provided with the machine, and users can also observe with a high-precision optical microscope.
Qinsun Instruments Co., Ltd
- Posted By: Qinsun Instruments (Shanghai) Co., Ltd.
- Phone: +862164200566
- Address: No. 2578 Minhang District Gu Dai Road, Shanghai, Shanghai , shanghai , China
- Website: https://www.qinsun-lab.com/
Published date: October 12, 2021
- Business Description: Qinsun Instruments Co., LTD was founded in 2010, comprised of many experienced engineers and designers standing in the forefront of the industry.
Qinsun specialize in the research and development of high quality lab instrument for textile testing industry.
Our head office in Shanghai and we provide high quality testing instrument and comprehensive service for textile factory, academic research institute and textile lab worldwide.
We have our own textile testing lab.
Our textile testing methods and testing equipment are in the leading position in the industry and have passed the textile testing certification and iso textile testing standards issued by a number of testing.
We always develop the highly sophisticated test instrument which can meet the various demands of the textile industry.
We provide the upfront Micro weathering test equipments with our own brand name QINSUN, such as thermal resistance wet resistance meter, MMT(moisture management tester) etc, and the new functional test instrument include air permeability tester, hydrostatic head tester, thermal protection performance tester, as well as the widely used lab testing equipment such as textile washing color fastness tester, abrasion tester, pilling tester, rubbing color fastness tester, ironing tester and perspiration tester.
For the laboratory requirements, we also bring forth the new practical test instruments.
Qinsun products include: fabric test equipment, Textile Fabric Tester, fiber tester, yarn tester, carpet tester, non-woven fabric tester, toy tester, leather tester, automotive material test equipment and others.
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