Tianjin automobile spray cleaning supplier mlxzmi interpretation: Shanghai twist Group Industrial Co., Ltd. is a world-renowned German Foerster eddy current flux leakage spot welding equipment authorized agent, we have a number of professional technical personnel and consultants in this field. Chemical or biological agents used in industry to remove dirt are collectively referred to as industrial cleaning agents. There are many different kinds of industrial cleaning agents.
industrial cleaning agents are commonly used as surfactants: cationic surfactants / anionic surfactants / amphoteric surfactants / nonionic surfactants, and commonly low foaming cleaners are commonly used as nonionic surfactants. There are more serious environmental pollution problems in the production process of copper plated welding wire.
)For fillet weld with weld leg of ~ mm, single pass welding is accepted, and the welding direction is ~ mm from the root (welding wire). For the weld with MM weld leg, the curve moving method is adopted for spot welding. For the weld with MM welding foot, the welding shall be conducted with transverse swing, and the inclined circle wire moving method can be adopted for spot welding.
According to the chemical quantity
(1) non water industrial cleaning agents, in simple words, industrial cleaning agents that are insoluble in water and cannot be used with water; such as hydrocarbon cleaning agents, white oil substitutes, trichloroethylene substitutes, etc. belong to this category.
The traditional cleaning agents for solvent industry are as follows:
hydrocarbons (petroleum), such as kerosene, diesel oil, gasoline, environmental protection hydrocarbon cleaning agent, etc.
chlorinated hydrocarbons: such as trichloroethylene, dichloromethane and tetrachloroethylene;
alkanes: such as n-hexane, n-heptane, etc.
chlorinated hydrocarbons: such as trichloroethylene, dichloromethane and tetrachloroethyleneFluorinated hydrocarbons: such as Freon and so on;
brominated hydrocarbons: such as n-bromopropane (NPB), etc.
alcohols: such as ethanol, methanol, etc.
ethers: such as petroleum ether;
ketones: such as acetone, etc.
(2) water industrial cleaning agent, simply speaking, is an industrial cleaning agent that can be dissolved in water and diluted with water. Water industrial cleaning agent is mainly composed of surface active agent and other chemicals; water industrial cleaning agent is now widely used in industrial cleaning of plastics, optical glass lenses, metal products (copper, iron, aluminum, steel, zinc, alloy) and other materials to clean all kinds of oil, dirt and grease on the surface. Due to the thick plate and high strength level of the support structure, in order to ensure the uniform heating, the integral preheating method should be adopted after the assembly and spot welding of the components, and the preheating temperature is ℃.
According to the pH value
(1) acidic industrial cleaning agent refers to the industrial cleaning agent with pH value less than 7, such as acidic water-based cleaner wp-20 with pH value of 6.5;
(2) neutral industrial cleaning agent refers to the industrial cleaning agent with pH value about 7, such as neutral detergent whc-1 The pH value is 7;
(3) alkaline industrial cleaning agent refers to the industrial cleaning agent with pH value greater than 7, such as weak alkaline water-based cleaning agent whc-2, alkaline glass cleaning agent wsg-130 with pH value of 9, alkaline water-based cleaning agent wp-751, whc-5 and alkaline optical glass cleaner wsg-100 with pH value of 11. This paper describes the technical characteristics and application of TIG weldingAccording to the cleaning objects
metal cleaning agents
all kinds of condensers, heat exchangers and filters, reverse osmosis mechanical tools are generally accepted by iron and steel, metallurgy, electric power, chemical industry, paper making, food, pharmaceutical, textile and other enterprises. Due to the change of water quantity and temperature difference, the scaling phenomenon of inner pipe is easy to form, which greatly reduces the heat exchange and filtration efficiency of the mechanical tool, leading to shutdown. The traditional methods are manual cleaning, high-pressure water washing and chemical cleaning. Not only the industrial robotic arm manufacturers cleaning effect is poor, it is easy to form corrosion and damage to the metal pipe and screen, shorten the service life of mechanical tools, accelerate the purchase and replacement cycle of mechanical tools, and form a huge economic loss for users.
However, the spot welding materials for boilers in Chen can not meet the needs of large capacity and high parameter boilers, and the research and development of high alloy heat-resistant steel and heat-resistant stainless steel for boilers are lagging behind seriously, especially for the spot welding of heat-resistant steel with temperature parameters above ℃. Japan, the United States and Europe have made gratifying achievements in developing new materials. While developing materials such as TP, TP, TP, TP, TP, super h, HRC, etc., a series of suitable spot welding materials have been pipe bending machine china developed.
A leading element of bioengineering technology is the center of the cleaning technology, especially the technical concept of "full synthesis and full compatibility". It solves the problem that a cleaning agent in the world can not clean all kinds of common metal materials at the same timeSediment such as silt and rust. This cleaning technology can not only clean carbon steel, stainless steel, copper and other materials, but also can clean aluminum mechanical tools. In the process of spot welding, a large number of spot welding materials are used to fill the weld. Welding wires and welding rods are made of various alloy steels.
Leather cleaner
leather cleaner is a new type of non-ionic surfactant with low foam, high efficiency and environmental protection. It has good compatibility, strong alkali resistance (10% sodium hydroxide) and anti-oxidation. It has excellent emulsification, separation, soaking, alkali resistance, washing and decontamination ability. It has excellent washing effect on synthetic oils, mineral oils, animal fat and animal fat. Extremely low foam is an ultra low foam surfactant, and it does not use defoamer, so there is no silicon stain problem. It contains no APEO and formaldehyde, easy biodegradation, green environmental protection, no, no, no easy to burn and explosive, and use quietness. It is widely used in the manufacture of low foam beer bottle cleaner, low foam food machinery tool pipeline cleaner, low foam tableware cleaner, low foam carpet cleaner, high pressure spray cleaner, low foam metal degreaser, low foam fiber refining agent, low foam leather degreasing agent and other industrial and civil cleaning agents.
Pan jiluan: in the early s, he experimented with the argon arc welding of Shengli and established the nuclear reactor project of Chen in Shengli, and then studied the electron beam welding machine of Shengli Chen. In, ZD electron beam welding machine was awarded the second prize by the science and Technology Commission, the Economic Commission and the National Development Planning Commission.
yellow robe cleaning agent
yellow robe cleaning agent is a kind of exterior activity with strong penetration abilityThe water-based cleaning agent composed of agent and auxiliary agent can effectively remove grease, paraffin, carbon mark, dye, mildew and other dirt on the surface of machinery, equipment, tools and buildings.
Sales characteristics:
1. Strength: strong ability to soak into the bottom of "yellow robe" and peel it off.
2. Tranquility: no burning, no corrosion to human body, mechanical tools, plastics and metal.
3. Economy: according to the different levels of clean sewage, water can be diluted into different multiples. However, carbon dioxide gas shielded solid wire manufacturers use the welding line produced by steel as raw material, and only change its size and specification by drawing to make finished welding wire. Therefore, the metallurgical quality of welding wire is very important to spot welding quality.
When the circuit is open (open circuit), the current is always equal to zero no matter how high the voltage is. In that case, the terminal voltage of the circuit is the electromotive force E of the power supply, which can be measured at a and B with a voltmeter. Chen can think that is the no-load voltage of the welding machine. Because the circuit can not form a loop, there is no current in the circuit, and there will be no voltage at both ends of resistance R. (the resistance R implies that the internal resistance of the power supply in the spot welding arc source system is the sum of the loss voltage drop of the transmission cable. The internal resistance of the power supply is caused by the leakage reactance of the transformer and the regulation of the conduction angle of the rectifier and the pulse width of the switching device).
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