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Tire Mold Cleaning Process

Yantai Wonray Rubber Tyre Co.,Ltd | Updated: Apr 25, 2015
Mould on Tires



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, 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, widely used by the tire industry. The method has the advantages of simple operation, Mould on Tires the equipment and tool requirements are not high, but there are also insurmountable defects: will cause mechanical damage to the mold, shorten the life of the mold; sandblasting easy to plug the mold 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 method mainly includes: organic solvent method, melting method, pickling method, alkali washing method. These methods are easy to use and low cost. But 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, Mould on Tires 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" 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 process in many fields with many of its own 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 removal of the surface of the object to clean the surface 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), 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 a 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 the 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 achieve the purpose of cleaning.

Specifically for tire mold cleaning, the mold absorbs a specific wavelength of the laser, the energy is very small, will not cause damage, mold surface dirt (sulfide, inorganic oxide, silicone oil, carbon black, etc.) absorb a lot of energy, 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, 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 the inert gas purge substrate surface. When the dirt from the surface after stripping, will be immediately blown away from the surface of the gas to avoid surface contamination

Tire Molds There are two traditional cleaning methods:

First, the 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 Mould on Tires cleaning method is a mature technology, widely used by the tire industry. The method has the advantages of simple operation, the equipment and tool requirements are not high, but there are also insurmountable defects: will cause mechanical damage to the mold, shorten the life of the mold; sandblasting easy to plug the mold exhaust hole, The work of the stomata is very large. Must be removable mold, resulting in high labor intensity, long cleaning cycle.

Second, the chemical cleaning method

Chemical cleaning method mainly includes: organic solvent method, melting method, pickling method, alkali washing method. These methods are easy to use and low cost. But the use of the long-term use of the mold caused by corrosion, which directly affect the appearance and quality of the product; 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.

New cleaning technology

First, 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 process in many fields with many of its own advantages.

The so-called laser cleaning technology refers to the use of high-energy laser beam irradiation of the workpiece surface, so that the surface of the dirt, Mould on Tires rust or coating instantaneous evaporation or stripping, high-speed removal of the surface of the object to clean the surface or surface coating, so as to achieve a clean process 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), 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 methods are:

1) laser dry cleaning method, that is, 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, Mould on Tires with the inert gas purge substrate surface. When the dirt from the surface after stripping, will be immediately blown away from the surface of the gas to avoid surface contamination and oxidation;