Rubber parts in automotive industries
Quality control of rubber parts
The aim of this study is to determine the extent to which the quality of rubber parts can be increased by the use of rubber inspection equipment and by the use of rubber parts inspection to compare the results. Rubber parts having both good mechanical properties and good quality control features have been selected as the target products. In order to access a reliable system, drafting documents and designing control systems that are applicable and compatible with the conditions of a production unit is gradually finding a suitable place for itself in the industries. One of these methods is to create a suitable mechanism to ensure quality assurance. (suitable for use) for rubber parts used in automotive factories In fact, the direction and movement in this direction is due to the priority of replacing Ckd parts with internal parts, and many industries, including automobile manufacturing, are facing many problems in this field. And considering that currently the rubber suppliers of industries are made up of small workshops, often these small producers of rubber and plastic parts do not have a proper quality control procedure, and this doubles the related problem in parent industries. Quality control of rubber parts in automotive industries plays a major role in the production process of various rubber parts. This article has been written to provide some basic information on quality control of rubber parts in automotive industry.
Required characteristics of rubber parts control
The application and operational conditions of rubber parts in static and especially dynamic state depend on many factors. Unlike many metal or plastic items, rubber parts provide a set of many features at the same time. These characteristics are a set of physical-chemical-mechanical characteristics and can be affected by the environment. They cause a lot of complexity in the evaluation and quality control of rubber parts before consumption and during production. In other words, it should be mentioned that characteristics such as hardness, percentage of increase, tensile strength, although the percentage of increase in length, tensile strength are the main characteristics of concern for the performance of a tire, but they are not sufficient and definite conditions to perform the optimal performance of the part. It is not easy to measure and control the properties of rubber parts. Many of these properties cannot be measured on the product, and in addition, controlling many properties requires spending a lot of time and money. Even unlike metal parts, the dimensional control of this category of materials has its own problems. On the other hand, the change in the raw materials, mixing, manufacturing process, and curing of a rubber part has a great determining role on the final performance of a rubber part, for this reason and with the presence of such special characteristics in rubber parts, a suitable control system is necessary to control these parts.
Special procedures for controlling rubber parts
- Quality control of raw materials
- Quality control of the production process
- Quality control of manufactured products
- Quality control of product performance in working conditions
In the following, a view of the process including these four stages is depicted.
If we consider the application of the quality control system of the automobile factory, which is the buyer of rubber parts. The first and second stages, i.e. quality control (raw materials and production process), must be continuously evaluated by the automotive factory independently of the quality control of the part manufacturer. The third stage means that the produced product is inspected independently both in the parts maker’s workshop and in stages by the parts user (automaker). Use production units. Compared to the parts manufacturer, the rubber parts are more closely related to the practical conditions of the parts. Therefore, having a suitable control system during operation can play an important role in improving the quality of the part. The diagram below shows the flow of information between the factory producing the parts and the factory consuming it. Compilation of such a system is necessary to respond to the combination of four special stages of quality control of parts.