Taber wear resistance testing machine calibration

The Taber Wear Resistance Testing Machine is a conventional laboratory test equipment that can be used to quickly measure the wear resistance properties of materials. It features very ideal stability, high precision and versatile features. It is suitable for leather, fabric and coverings. , paper, tile, plywood, glass, plastic flooring, natural rubber and other materials, there are single and two-station wear resistance tests, as well as imported and domestic tests. Qisnun Precision Mechanical and Electrical Technology Co., Ltd. is a manufacturer of textile testing instruments. The manufacturer can provide various textile testing instruments. Customers in need are welcome to call us in time. In addition, Qisnun technical engineers said that the Taber wear resistance testing machine needs to calibrate some key components before performing the tests, cosame follows.

1. Wheel position

The installation position of the rubber when tied to the center of the door -sample, requiring strict values. The lateral distance between the fixed edge of the left wheel and the center of the specimen holder should be 25.8 mm (11/64 inch); the distance from the same point to the fixed edge of the right wheel should be 27.4 mm (15/64 inch). Since the emery friction wheel has little relation to the center position of the specimen holder, the requirements are not very strict. Therefore, it is recommended to take an average distance of 26.6 mm (13/64 inches) between the fixed position of the wheels on both sides and the center of the sample holder.

2. Wheel bearings

The two pairs of friction wheel bearings are installed on the free end of the axle arm to support the friction wheel. When driven by the index finger to make it rotate rapidlyt, it must not block. However, there are no strict requirements for the degree of rotational freedom of bearings.

　3. Platform position

　The vertical distance between the top of the sample holder and the center of the fulcrum of the arm of the abrasion resistance instrument must be 25 mm (1 inch). This dimension avoids errors that can occur when installing stops or similar devices that support the sample stage. For the platform to maintain the position specified above, all components must fit together. The sample platform should rotate on its surface. If it cannot rotate this way and tends to wobble, the holder and adapter, or stopper used to support the sample holder, should be replaced.

4. Platform speed

The platform rotates at approximately 70 rpm.

5. Load adjustment, counterweight

The counterweightof double head rotating fabric abrasion tester is used to reduce the load on the friction wheel on the sample. This counterweight is not recommended because studies have shown that counterweights with unequal arms can distort test results.

Test bead selection:

1. Since there are differences in abrasive quality between rubber wheels of the same quality, the wheels used for each special test should be selected according to to the regulations. Mo, to reduce this difference. All rubber wheels are tested individually on a selected piece of known reference fabric to determine which changes the least in abrasion resistance. Divide the wheel set into three pairs and place them within the specified tolerance range. Then use it as specified.

2. When using emery wheels, the pair of wheels used must have strength propertieswith similar wear. Tested on selected standard fabrics. Once you have a pair of grinding wheels that you are happy with, as long as the grinding quality does not change, that is, the grinding wheels are not clogged with difficult to remove materials, they can be used for a long time indeterminate.

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