In che modo i produttori testano gli pneumatici?
Il design del pneumatico determina gli indicatori di base rilevanti del pneumatico (come le specifiche, dimensione, capacità portante, modello, eccetera.), su questa base, pneumatico R&Gli ingegneri D selezionano la struttura del pneumatico appropriata, materiale del telaio, formula di gomma, dimensione, modello sulla base di calcoli scientifici, (Ora è possibile generare direttamente disegni di progettazione dei pneumatici con l'aiuto di serie di computer e analisi di big data).
How the tires produced according to this design plan behave in the process of use is actually not easy for technicians to grasp. Perciò, for every type of tire, the manufacturer will do relevant tests, which are mainly divided into laboratory tests and vehicle tests.
The whole vehicle test can be divided into the whole vehicle proving ground test and the whole vehicle actual test, questo è, the tire is directly handed over to the driver to use it to observe whether the usage situation conforms to the design situation and market positioning.
Laboratory tests mainly include:
1. Tire Section Analysis: The tire section is a sample cut radially from the tire bead in the tire anatomy test.The size and distribution of each component can be analyzed from the tire section. The tire section analysis is an important method to judge the inherent quality of the tire.
Cut the produced tire directly, observe the tire section, mainly to see whether the tire structure is consistent with the design, especially the shape, dimensione, thickness, eccetera. Dopotutto, there are many uncontrolled factors in the production process of tires, especially in the vulcanization process, and no one can guarantee that they fully conform to the design. In questo momento, if there is an abnormality, the technicians will start to optimize and improve.
Gomme dell auto, i pneumatici per autocarri e altri pneumatici speciali non sono realizzati solo in gomma. È una combinazione di nylon, steel and beads and rubber.Cutting all the material with different hardness and get a flat, clear cutting surface is the most difficult part of tire cutting process.The latest technology on the market today is to use diamond wire loop to cut tires. Diamond tire cutting wire is also called tire section cutting wire. Below is the tire cutting video for your reference.
2. General testing of tires: outer edge size, X-ray inspection, dynamic balance inspection, uniformity inspection, bubble inspection, appearance inspection, eccetera. (this is an essential inspection item for all tires)
3. Laboratory test tires (only refers to the testing items in the laboratories of tire manufacturers and related testing institutions), mainly test the performance of tires, generally there are high-speed test, load test, strength test, wear test, tensile deformation test, braking coefficient, air tightness test, de-loop resistance, eccetera, passenger cars are also tested for noise, basically, one type of tire requires 10 per 20 tires in lab tests;
The test of the whole vehicle proving ground is mainly to install the tires on the vehicle for real vehicle testing. The main tests are its handling, safety performance, noise and performance under various conditions of use, allo stesso tempo, the problems existing in the actual use process are exposed for optimization and improvement; Per esempio, the braking performance, noise, tire drainage, side slip performance, eccetera. that we are concerned about are all tested here;
After the above test, the tire manufacturer will find corresponding drivers, companies, eccetera. all over the country, and send the test tires to observe the effect of actual loading and use. In genere, the test will take about 6 mesi. If there is no problem, apply for the relevant certification. Only after qualification can it be put into the market.
