Throughout the morning, Jiang Hui, led by Pi Wei, Kato and others, visited the stamping and welding workshop of Guanghui Auto, and had lunch in the temporary cafeteria inside Guanghui Auto at noon.

Although the Guanghui Auto Base has not been fully built, many people work here every day, and eating issues must be considered, and a temporary canteen came into being.

"When our canteen is outsourced to other companies, we must choose a company with a larger brand, and we cannot save money in our mouths." For temporary canteen food, it is not very delicious, nor is it very unpalatable.

However, for the future glorious cars with thousands of people, the construction of canteens is not a small problem.

Eating every day is a common thing in the cycle of eating, working and sleeping. If you eat poorly, it will affect your work efficiency.

Just like some consulting companies stipulate that business class must be booked for four hours on a plane, and economy class cannot be taken, because they think this will affect work efficiency.

Compared with the labor costs of the entire company, Jiang Hui still cannot save the cost of eating a little bit.

"I understand, we have selected two suppliers now, and they will run the No. 1 and No. 2 respectively. At that time, dishes from all over the world can be found in the canteen," said Pi Wei.

"It's good to use the two companies together. Everyone has competition. Only with competition can there be progress. Otherwise, even if the dishes are good at the beginning, the laziness will gradually increase, and the level will decline," said Jiang Hui.

The importance of competition is unquestionable. Look at what you encounter in daily life. Any fully competitive price is relatively reasonable. Any monopoly nature is...

The oil price in the Celestial Empire is the most obvious representation, and of course the salt price.

"Yes, we consider this too, and our contract is signed once a year. If the employee satisfaction is very poor, it will not be renewed in the second year."

After dinner, everyone didn't have much rest and went to visit the factory.

Adjacent to the welding line is the coating workshop.

When the white body is manufactured in the welding workshop, it will be directly transmitted from the conveying chain to the coating workshop.

"Mr. Jiang, after our white body is at the coating workshop, we will first perform pre-treatment in this area, including water washing, pre-degreasing, degreasing, surface adjustment, phosphating, and passivation. The main function is to remove oil stains on the surface of the car body and form a flat phosphating layer on the surface of the car body to facilitate better electrophoresis and increase the adhesion of the electrophoretic paint." Pi Wei pointed to a construction area inside the coating workshop.

The painting workshop, as the name suggests, is a workshop that paints cars.

The colorful cars we usually see on the road are painted in the painting workshop.

As we all know, the use of cars is very complicated. Whether it is windy, rainy, or hot sun, whether it is tropical high temperature or severe cold in the north, whether it is salty areas by the sea or under the plateau air pressure, cars are used.

Since the use situation is so complicated, in addition to the high requirements for the various performances of the car and the high stability requirements, the paint quality of the car cannot be ignored.

You should know that most of the car bodies are made of iron. Iron will be corroded when exposed to the air. If the key is seriously corroded, it will cause danger and danger...

That is possible death!

Naturally, the process requirements for automobile coating appear very high. It can be said that among general industrial products, automobile coating requirements are the highest comprehensive performance requirements.

Not only should we consider corrosion resistance, but also stone strike resistance and high and low temperature resistance...

In this way, the importance and technical content of the painting workshop are self-evident.

"After the pre-treatment is completed, electrophoresis and water washing. The electrophoresis paint is the first layer of paint film on the steel plate of the car body. Its main function is to prevent corrosion, dry, polish, and remove defects such as electrophoretic sag and sheet metal and PVC left over from the car body." Pi Wei continued to introduce.

"Then the next step is the sealing line, which seals the gaps in the car body to prevent water leakage and air leakage and sound insulation. Then it is the middle coating spraying. The main function of middle coating is to resist stone strikes, UV rays, drying, grinding, and removing defects such as sags and sealants caused by middle coating."

"Then the topcoat spraying is performed, which is divided into color paint and varnish. Needless to mention color paint, it determines the color of the car body. The varnish mainly increases the gloss of the car body, chemical resistance, weather resistance, corrosion resistance, and a certain degree of hardness and flexibility," Pi Wei continued.

"Most of the coatings and solvents used in the coating workshop are toxic substances, right?" Jiang Hui asked.

"Yes, various paints form paint mist, organic solvent vapor and dust during work. Long-term contact and inhalation of operators can cause chronic poisoning and damage health. Long-term work in the coating workshop may cause chronic poisoning of different degrees.

Mild benzene poisoning: may cause headache, dizziness, general weakness, fatigue and drowsiness, palpitations and loss of appetite, occasional nosebleeds and bleeding gums.

Moderate benzene poisoning: white blood cells drop below 3 ooo, red blood cells and thrombocytopenia, frequent bleeding from the nose and gums, blood congestion and purple spots may appear subcutaneously, women prolong menstrual periods and decreased resistance.

Severe benzene poisoning: white blood cells drop below 2ooo, red blood cells and platelets are greatly reduced, oral mucosa and subcutaneous bleeding, extensive retinal bleeding, liver enlargement, significant changes in bone tissue, polyneuritis, aplastic anemia, etc., Kato explained on the side.

"Our coating workshop regulations are that when removing rust, polishing, spraying, etc., you must wear protective glasses, filter masks to prevent gravel, paint mist, etc. from damaging the eyes and respiratory system.

When using pickling or alkaline solution to remove rust, you should wear acid-resistant gloves and protective glasses.

When using double-part coatings, especially those containing isocyanate, they must be carried out in a spray paint room with sealed and well-ventilated ventilation system. Operators must wear activated carbon filter breathing masks or air supply masks,” Pi Wei also explained.

"The most important thing is that our coating production line is the most automated among all production lines, and the paint used is also water-based paint, which avoids occupational diseases from the source as much as possible," said Kato.

"Is water-based paint? Is there any difference between ordinary paint?" Jiang Hui looked at Kato with a questioning expression.

"If you want to talk about the difference, the most obvious thing is the price. Water-based paint is more expensive, but it is more environmentally friendly," Kato said with a smile.

"Water-based paint is made of water as a diluted solvent, with a low voc content, which is lower than the national mandatory standard of 2oomg/1. It is a truly non-toxic and odorless high-tech environmentally friendly product.

Ordinary oil-based paints use organic solvents as diluents, and their products contain benzene, toluene, xylene and their derivatives. In addition, polyester paint also requires a curing agent, so the toxicity of polyester paint is the highest, while the toxicity of nitro paint is second," said Kato, the project manager responsible for the construction of the coating workshop next to him.

(End of this chapter)
Chapter completed!