Shandong drake production of metal wire tensile testing machine is mainly used for steel wire, iron wire, aluminum wire, copper wire and other metals, non-metallic materials in the normal temperature environment of tensile, compression, bending, shear, peel, tear, load and other static mechanical properties test analysis.
We know the factory in order to detect whether the products qualified can use wire tensile testing machine, but used by the tester for some operators don’t know the potential problem, it is possible that the different choice of material to produce the inappropriate when testing machine, more or less have some differences leading to the result of the test is not true.
Then shandong Drake analyzes several problems raised by users and solves them!
There are blind spots in force sensor verification
General metrological verification takes 10% or even 20% of the maximum load of the equipment as the starting point of verification, and many poor quality sensors are just ≤ 10% or less with great error;
The beam velocity is unstable
Different experimental speed will get different experimental results, so it is necessary to verify the speed;
The material selection of the manufacturer’s moving beam is improper
Especially when doing the metal test of large tonnage, because the beam is also stressed at the same time, the deformation itself will also affect the test results. Therefore, it is better to choose a good cast steel material, if it is cast iron material sometimes even can be overwhelmed and directly fracture;
Installation position of displacement sensor
Because of the design difference, the displacement sensor installation position is different: but installed on the screw side will be more accurate than installed on the motor;
Coaxiality (to neutral) is ignored
Perhaps because of the difficulty of inspection, almost no one has carried out in-depth research on the coaxiality of the equipment, but the existence of coaxiality problems will certainly have an impact on the experimental results, especially for some small load tests, I have seen that the fixture base is not fixed equipment in the test, how clear the credibility of the data;
The fixture problem
After long-term use, the fixture jaws will be worn will collapse teeth will be deformed, resulting in insecure clamping, or damage to the sample, affecting the final results of the test;
Synchronous belt or reducer effect
If the equipment is not careful enough in the production process, it will accelerate the aging life of these two parts, and if it is not replaced in time, the results of the experiment will be affected.
The safety protection device is faulty
The result may directly damage the device. You are advised to check the device periodically, because some of the devices may be caused by software faults.
Post time: Feb-03-2022