What are the stainless steel caster testing method

Stainless steel caster test method 1, what are the impact test any item is likely to be due to the transportation, use, storage and other vibration caused by collision, but the product may be bad for a period of time can't even use. Furniture because of its large size and weight and often vulnerable, to determine whether furniture placed at the bottom of the. Smooth castor should have a good impact resistance. Continuous casting machine in Europe the impact test of the test standards of the method is: will vertical continuous casting machine is installed in the ground test platform, make the quality of 5 kg weight distance height is 200 mm, allowed deviation is + / - 3 mm, free location affect the caster to give up. If it is two rounds of two wheels should be hit at the same time. In the whole experiment process, do not allow any part of the caster. After completion of the experiment, should not damage the caster roll, the rotation of the axis or brake function. 2, the resistance performance test in the test, the performance, castor should keep dry and clean. The caster wheel on the metal plate with ground insulation, keep the wheel edge contact with metal plate, and the castor loaded into the 5% and 10% of the rated load. By measuring insulation resistance tester castor and resistance value between the metal plate. For conductive castor, resistance is not more than 104 ohms, the resistance of the antistatic caster should be between 105 ohms to 107 ohms. 3, the static load test of stainless steel castor should always be stable operation on the ground, but it is almost a state of pure theory. On a jagged surface, or when cross the threshold and orbit or pit, the caster will briefly from the ground. Therefore, when they suddenly overloaded or three of the four castor touches the ground, they must carry the entire load of furniture. In the European standard, static load test program is the castor castor fixed on the level of smooth steel test bench, center of gravity put 800 n force along the caster and maintain for 24 h, and within 24 hours after the check of the condition of the caster. Forcibly removed. Truckle deformation after the experiment measuring no more than 3% of the wheel diameter, the experiment after the completion of the caster roll, around the axis of rotation or brake function is not affected by the damage was qualified. 4, reciprocating wear test stainless steel caster as the main force of furniture back and forth, inevitably, wear and aging. The length of the reciprocating wear life directly affects the normal use of furniture products. Maybe some heavy furniture once set won't easily move, but often use castor. Swivel chair had to accept test rolling back and forth all day long. Continuous caster reciprocating wear test to simulate the actual situation of the continuous caster rolling in daily use. It is divided into obstacles and accessibility testing two kinds. Castor has been properly installed and placed on the test platform. Each test castor is equipped with 300 n. Test frequency is 6 - Eight times/min, a test cycle including 1 m and 1 m back before and after the move, as well as the obstacles on the test platform of 5000 or 30000 times tests. The test bench has 70000 or 20000 barrier-free level. In the process of test, do not allow the castor or from other parts. After the test, each castor should be able to drive its normal function. After the completion of the test, castor castor, around the axis of rotation or brake function should not be damaged. 5, rolling resistance and rotational resistance test when the caster to move or want to control the direction, force must through the object is passed to the caster and overcome resistance. Depends on the size of the resistance, load, wheel diameter, material, the wheel of the wheel shape, caster wheel rotation, etc. ( Zhongshan castor) For rolling resistance test, the standard is installed in the three arm of the base three casters. According to the different levels of tests, base on 300/600/900 n load test, and horizontal traction to make the test platform. At the top of the caster for a 50 mm/s, keep for 10 s. Because the friction of the stainless steel castor began to large and acceleration, so after 5 s measure level of traction, and size is not more than 15% of the test load. Rotational resistance test is in linear or circular motion tester is installed on one or more casters, make its direction and 90 ° direction. According to the different levels of testing, for each of the caster on 100/200/300 N load test. Applying horizontal traction so that the test platform of castor with a 50 mm/s marching and rotate in 2 seconds. Record rotating caster level of big traction, size does not exceed 20% of the test load.