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How to use the tension test Tensile Testing machine

  Tensile Testing Machines is a kind of instrument used for measuring the geometric parameters of materials (metal, plastic, fiber, etc.) and static dynamic mechanical characteristics under tensile load. Tensile testing machines through the opening of the sample across (to determine the size and shape according to the standards or specifications), with the tensile strain stress into meaningful numerical results, in order to accurately judge and analyze the tensile properties of various materials. Now let's take a look at the steps of using the Tensile Testing machine The use steps are as follows: Preparation: fix the material sample to be tested on the test machine, and adjust the fixture and sensor of the test machine. Set test parameters: set mode, speed, range for testing. Start the test: Start the test, the test machine will apply force to the material, and record the test data. End test: After the test, stop the operation of the test machine and save or print the test data. Da...

SRRC certification

  SRRC Certification is a mandatory certification of radio transmission equipment in China to ensure its spectrum use compliance and avoid interference. Products required for certification include: 1. Wireless communication equipment: mobile phones, routers, Bluetooth headset, etc. 2. Wireless remote control: toys, drones. 3. Wireless microphone and amplification system. 4. Radio navigation equipment. 5. Radio intercom. 6. Radio broadcasting and transmitting equipment. 7. Other radio-spectrum equipment. It shall not be sold and used in China without SRRC certification.

Shower test device

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Suitable for external lighting, signal devices and automotive lamp shell protection, can provide realistic analog electronic products and their components during the transportation and use of the spray test may be subjected to water and other environment, to detect the waterproof performance of various products. Common operation mode 1.Preparation: First, select a test device that can simulate the real rainfall conditions. A spraying system or spray device can be used to ensure a uniform and continuous flow of rainwater. 2.Sample preparation: Cut the material to be tested into the appropriate size, usually square or rectangular. Ensure that the edges of the sample are flat, with no obvious defects. 3.Install the samples: attach the sample to the device to ensure full level and withstand rain. 4.Adjust test parameters: adjust the operating parameters of the shower, such as flow and spray Angle. 5. Experimental: turn on the shower and start the experiment. Usually the experiment lasts fo...

Vibration test

The vibration test methods can be divided into sinusoidal vibration and random vibration: Sinusoidal vibration is often used in the laboratory test method, to simulate rotation, pulsation, shock (in ships, aircraft, vehicle, space aircraft) on the vibration and the resonance frequency analysis of product structure and little note to pick up card is given priority to, it is divided into two kinds of sweep vibration and fixed frequency vibration, the harsh degree depends on the frequency range, loss amplitude, test duration. Random vibration is assessed as the seismic resistance strength of the overall structure of the fire module product and the delivery environment in the packaging state, and its severity depends on the frequency range, GRMS, test duration and axial direction.

The main test items of small home appliances are as follows:

1. Electromagnetic compatibility (EMC): harassment power, radiation harassment, terminal harassment voltage, electrostatic discharge immunity, electromagnetic radiation immunity, conduction immunity, etc. 2, low voltage part (LVD): harmonic current, voltage fluctuation and flicker, current intensity, instantaneous voltage, etc.

juicer test item

The specific items of the food contact material testing of the juicer are as follows: 1. Stainless steel knife head test items: Total chromium 2. PP material test items: Specific gravity Melting point (only for PP) n-hexane extractives Xylene extractives