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Tire mold cleaning skills

Yantai Wonray Rubber Tyre Co.,Ltd | Updated: Sep 21, 2017

Tire mold operation tips

1, according to the tire mold casting or forging rough, and then roughing and heat treatment. Tire mold for a complete annealing treatment to eliminate the internal stress, Mould on Tires annealing should be flat, to avoid deformation is too large;

2, according to the drawings to lift the hole, and then press the semi-fine car drawings will be the diameter of the ring and the height of processing in place, with semi-precision car program car lap cavity, car finished with semi-fine model test;

3, with a good processing of the tire mold pattern of the pattern of patterns within the pattern of electric processing, with a model test;

4, the pattern according to the requirements of manufacturers are divided into several copies, respectively, draw the marked line, Mould on Tires into the tooling back waist and tapping;

5, according to the same part of the process of 8, at the crossed line at the cut;

6, the cut a good block according to the drawings required to light the pattern, clear angle, clear roots, playing the exhaust;

7, the block block cavity even within the sandblasting, the same color requirements;

8, the pattern ring, mold sets, Mould on Tires the upper and lower side board assembly, complete tire mold.

Mold is an important tool used in tire vulcanization process, the mold in the course of the inevitable use of rubber, with agents and vulcanization process used in the release agent of the integrated deposition of pollution (the main pollutants are sulfide, inorganic oxidation Material, silicone oil, carbon black, etc.), repeated use will cause some patterns of pollution dead zone. Therefore, it is necessary to regularly clean the mold to ensure the cleanliness of the surface in order to ensure the quality of the tire and the life of the mold, in view of this, Mould on Tires tire mold cleaning technology development industry attention.

Tire Molds There are two traditional cleaning methods:

1.1 mechanical cleaning method

The use of artificial sand or steel wire physical grinding and dry sandblasting, according to the need to use a different combination of cleaning. Mechanical cleaning method is a mature technology, Mould on Tires widely used by the tire industry. The method is simple and easy, the equipment, tools are not demanding, but there are insurmountable defects: the mold will cause mechanical damage, shorten the life of the mold; sandblasting easy to plug the mold of the exhaust hole, The work of the stomata is very large. Must be removable mold, resulting in high labor intensity, long cleaning cycle.

1.2 Chemical cleaning method

Chemical cleaning methods include: organic solvent method, melting method, pickling method, alkali washing method. These methods are easy to use and low cost. But the long-term use of the above method will cause mold corrosion, which directly affect the appearance and quality of the product; Mould on Tires the same time these pharmaceutical raw materials pollute the environment, damage the health of operators, must have a complete means of labor insurance and pollutant handling equipment. At present, the law is mainly used for small rubber products business.

With the continuous development of science and technology, some new technologies have been developed and applied. These cleaning techniques will bring "revolution" Mould on Tires to the tire mill industry that is of concern. But these high investment technology can be accepted by the market, need to be tested. The following article will focus on these new technologies that have been industrialized.

2. New cleaning technology

2.1 laser cleaning technology

Laser cleaning technology is a new type of cleaning technology that has been developing rapidly in the past 10 years. It has gradually replaced the traditional cleaning technology in many fields with its own many advantages.

Laser cleaning technology refers to the use of high-energy laser beam irradiation surface of the workpiece, so that the surface of the dirt, rust or coating instantaneous evaporation or stripping, Mould on Tires high-speed and effective cleaning surface cleaning objects or surface coating, so as to achieve a clean process. It is based on the laser and material interaction effect of a new technology, with the traditional mechanical cleaning method, chemical cleaning method and ultrasonic cleaning method (wet cleaning process), Mould on Tires it does not need to use any damage to the ozone layer CR Li Xin organic solvents, No pollution, no noise, harmless to the human body and the environment, is a "green" cleaning technology.

Laser cleaning uses a clean substrate (also known as the parent) and the surface attachment (dirt) for a certain wavelength of laser energy, with a very different absorption coefficient. Radiation to the surface of the laser energy, most of the surface attached to the absorption, so that heat or vaporization evaporation, Mould on Tires or instantaneous expansion, and by the surface of the steam flow to drive, from the surface of the object, to clean the purpose.

(Sulfur, inorganic oxide, silicone oil, carbon black, etc.) to absorb a lot of energy, is instantaneous expansion, Vaporization, away from the mold surface, so as to achieve the effect of cleaning.

Laser cleaning methods are:

1) laser dry cleaning method, that is, Mould on Tires the use of pulsed laser direct radiation decontamination;

2) laser + liquid film method, that is, first in the substrate surface deposition of a layer of liquid film, and then use laser radiation decontamination;

3) laser + inert gas method, that is, in the laser radiation at the same time, with an inert gas purge the surface of the substrate. When the dirt from the surface after stripping, will immediately be blown away from the surface of the gas to avoid surface contamination