Five points that must be paid attention to in the use of vacuum coating equipment in Baorui Titanium equipment
In the production of vacuum coating equipment, there are many questions about safe operation and trouble prevention. The following are only for the use of chemicals and safe electricity.
1. Inadvertent omissions often lead to the onset of the incident. For example, the silicon rectifier of a chrome-plating process in a factory is neglected, and the mouse is drilled into the box to form a short-circuit event. In the production, DC power supply, filter, crane and control cabinet should be properly protected and checked on time.
There are many incidents caused by electric heaters in the production. For example, a chrome plating tank of a factory uses titanium electric heating tube to heat up. Because the plating liquid corrodes to form electric leakage, the operator is knocked down by the electric hang, and the head hits the ground to form a concussion. . It is forbidden to expose the insulation of electrical equipment, and it is necessary to adhere to the cleaning of the production place.
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There is also a gold-plating factory that uses quartz glass electric heating tube to heat the gold-plated tank. When the electroplating is performed, the heating tube is cracked. Fortunately, the operator does not suffer damage in time, but the gold liquid splashed onto the ceiling and the wall and could not be recycled. The loss of ten thousand yuan. The safe electricity vacuum plating workshop production site is relatively humid, and there are harmful gases, which has adversely affected the safe operation of electrical equipment. Safe electricity is also an important part of the company's safe production.
2, cyanide has the most toxic effect, such as sodium cyanide, assuming 50-100mg can cause sudden death. In addition to strict handling, those who are cautiously cyanide poisoning should immediately give first aid, use isoamyl nitrite, gastric lavage with 0.0002% potassium permanganate or 5% sodium thiosulfate, and then sent to the hospital for treatment. The state has strict regulations on the production, distribution, storage, transportation, use and disposal of highly toxic chemicals, which must be implemented.
The most commonly used drugs for vacuum plating are compounds containing cyanide, arsenic and mercury.When adjusting the plating solution, the data should be completely dissolved, once in the tank, and the packaged materials should be treated harmlessly (such as neutralized with ferrous sulfate solution).
Some companies are negligent in the production, cyanide is used freely, in order to increase the profit on the side of the trough, the operator grabs it with bare hands, uses boiling water to dissolve and wear the factory clothes to enter the cafeteria, etc., which are extremely risky and absolute. Not allowed.
The use of drugs has followed the implementation of environmental protection and clean production policies. The electroplating technology has been carefully crafted, and the highly toxic chemicals used in production have been gradually reduced, but they still cannot be completely rid of the use of drugs. The receipt of the production should be completed by the security personnel and the operator, accurately measuring and establishing the registration number.
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3, in the operation should be well protected, if you do not care to splash the alkali on the skin should be immediately washed with 2% ~ 3% boric acid or acetic acid solution, air dried and coated with medical Vaseline or lanolin. The use of alkalis in vacuum plating before chemical degreasing, electroless oil removal solutions are alkaline solutions, lye has a strong adhesion and corrosive to human skin, it will cause burns.
In the production, the electricity exemption from the oil tank often accumulates thick foam and the phenomenon of blasting, and should be arranged in time; in the zincate galvanizing technology, the blasting phenomenon often occurs, and the drum should be deflated and finished in time; In the oxidation technology of parts, the lye θ is 130-140 ° C. Water should be added after the shift as much as possible. When adding water, use iron pipe or funnel to reach the bottom of the tank and slowly participate. Before the bath is heated, the alkali should be crushed. The hard shell prevents the hot alkali from splashing and forming a burn. If you are not careful to splash the lye into your eyes, you should immediately wash it with a lot of water to avoid corneal burns. If you are serious, you should be sent to the hospital for treatment.
4. Safe use of organic solvents and coatings Coatings usually consist of organic solvents, pigments and binders. Organic solvents are usually fat-soluble, and when they enter the human body, they can quickly react with fatty substances to form nervous system disorders. In order to ensure the health of the operator, the production site should perform excellent ventilation, so that the mass fraction of harmful gases in the air is controlled below 50% of the national demarcation value. The flammable gas is easily blasted by mixing with air at a certain volume fraction. For example, the blasting limit of gasoline is 1.4% to 7.6%, and the allowable content of gasoline in the air (ie, the working touch limit) is 300 mg/m3. Organic solvents are common reagents for electroplating, degreasing and coating processes. Organic solvents are volatile to flammable gases, and flammable gases are prone to flash fire when exposed to open flames. In the practice of production, there are many things that cause the fire to be caused by the use of organic solvents. The prevention should be strengthened. At the same time, carbon dioxide and dry powder fire extinguishers should be equipped at the production site.
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5, such as manpower to take extra care, often after the acid tank is put back after the pouring, the acid is easy to splash, forming a burn. The best use of siphon equipment or special trolleys when taking acid. These acids are highly corrosive and will swell stimulating gases during use. When manufacturing a mixed acid solution, it is necessary to first participate in an acid having a relatively low density, and then participate in an acid having a relatively high density to avoid splashing of the acid due to an exothermic reaction. Once the acid adheres to the skin, it should be washed immediately with 3% sodium carbonate solution. The use of acid in the vacuum plating of the acid is mainly used for etching. Commonly used are sulfuric acid, nitric acid, hydrochloric acid, hydrofluoric acid and chromic acid.
In addition, for electrophoresis, aluminum hard oxidation and micro-arc oxidation, there are DC high-voltage vacuum plating equipment processes, do not carry out electricity during operation to avoid the occurrence of electric shock incidents.