Six misunderstandings of radiator purchase
Generally speaking, copper has better corrosion resistance than steel, but under certain circumstances, copper radiators will also corrode. For example, if there is sludge in the system, excessive sulfur content, or the selected copper surface has a carbonized layer It will cause corrosion of the copper radiator. In addition, due to the different corrosion principles of
Die Casting Robot Parts the material, although the aluminum radiator has strong anti-oxidative corrosion resistance, it is prone to alkali corrosion and chloride ion corrosion, so when the water quality of a heating system is alkaline (PH value is higher than 8) , or when the chloride ion content is high (salt content is large), the radiator has the hidden danger of corrosion and water leakage.
Misunderstanding 2: Heating leakage is a problem with the radiator
In this heating season, several radiator leakage accidents were exposed by the media, which also attracted the attention of the China Building Metal Structure Association Heating Radiator Committee and responded actively: the association organized Sende, Jintiger, Florence, The person in charge of radiator brands such as Retiger discussed "radiator life and system problems", and found out some "diseases" of radiator leakage. Experts at the meeting believed that complicated heating water quality, mixed installation of radiators, and installation problems may cause heating radiators to leak or not heat. In addition, in the non-heating season, the heating radiator should be maintained with full water, otherwise it is easy to bury hidden dangers. "Draining the water in the heating system during the non-heating season will lead to rapid corrosion of steel radiators, boilers, water pumps and valves, and will also lead to blockage of radiator temperature control valves, heat meters and other products." An expert said this analysis. .
Misunderstanding 3: The product wall thickness (or no weld or smooth inner wall) is not afraid of corrosion
The cast iron radiator is not easy to be damaged by corrosion, because the cast iron itself has good oxidation and corrosion resistance, not because of the wall thickness. In recent years, some small domestic manufacturers have tried to solve the anti-corrosion problem of steel radiators by increasing the wall thickness, which is wrong. Because the corrosion of steel radiator is localized corrosion of small holes, rather than uniform corrosion. According to their theory, if the 1.3mm steel plate is corroded and perforated in 3 years, then the 2.0mm steel plate will definitely corrode and perforate in 5 years, which is also far from meeting the user's requirements for the life of the radiator.
In addition, some radiator manufacturers in the market are vigorously promoting their radiator products as "no welds, clean and smooth inner cavity" and so on. In fact, this does not play a role in the corrosion resistance of the radiator. Because the corrosion of the steel radiator does not occur on the weld, this is because the corrosion of the steel radiator is oxygen corrosion, so "no weld or smooth inner cavity does not mean that there is no corrosion".
Misunderstanding 4: Internal coating is equivalent to anti-corrosion
In the radiator market, salesmen must call it "anti-corrosion". In fact, up to now, there are only two types of internal coating anti-corrosion common in the domestic radiator market: "organic coating" and "inorganic coating". Generally speaking, the cost of inorganic coatings is higher than that of organic coatings, the process is more complex, the process requirements are stricter, and the anti-corrosion effect is better than that of organic coatings. Of course, there are also two kinds of processes in the market. For example, the second-generation anti-corrosion products of Suntech Infinite produced by Beijing Suntech are based on the inorganic layer plus an organic layer, double coating, multiple layers. protection, more security.
Myth 5: The more fancy and weird the product, the more decorative it is
Although the unique shape of the radiator increases the decoration and meets people's individual needs, it is not equal to being too fancy and weird. For example, the market is full of radiators with shapes such as "vase-shaped", "violin-shaped" and "moon-shaped". Not to mention the rough workmanship, it is difficult to coordinate harmoniously with other furniture in the living room, and the pipes that are too thin and excessively bent will cause problems. Significantly affect its cooling function.
Misunderstanding 6: Brand-name products are the same everywhere
When consumers buy heating and accessories, it is best to choose large enterprises and famous brand products with strong strength, and the place of purchase should be selected in large building materials supermarkets and regular brand stores. Don't be greedy for cheap, or try to save trouble, buy radiators in the nearest community, street shops or private hands. According to the data reported by many manufacturers, it is the most prone to problems when buying radiators at temporary sales points in the community: consumers have problems with their radiators at home, and it is reported to the manufacturer, but the manufacturer finds that the brand of the radiator is counterfeit, or Commodities that flow into the market through illegal distribution channels.
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