After many drivers have purchased refrigerated trucks, they will encounter many small problems of all sorts. I am troubled by these small problems every day. Therefore, the following Xiao Bian summed up some basic knowledge about refrigerated trucks and hoped to give some help to the refrigerated truck drivers.
What kind of temperature of the goods is easy to cool? When the ice cream is released, the temperature is about minus eighteen degrees, and this temperature is easier to lower. However, it is difficult for the temperature of the self-heating articles, such as the probiotic milk of Mengniu, fruits, vegetables and yeasts. The temperature of the box is knocked down, and the temperature of the goods does not necessarily fall. When the temperature of the cabinet dropped to minus 4 degrees Celsius, the temperature inside the probiotic cup was only 4 degrees Celsius. So whether the temperature can be lowered depends on the goods themselves.
Good quality chiller can spray fog in the box? This statement is definitely wrong. The main reason for the fog produced by the chiller is excessive moisture in the box, and it may be that the chiller's drainage is not smooth, usually we can from the temperature The table is judged. Of course, it can also be judged by the cooling water outlet outside the cooling chassis. If there is a continuous flow of water out of the box during the cooling process, this is a normal situation. If it is not, the artesian water outlet is blocked.
Does the exposure of the refrigerator to sunlight in the sun do not affect the cooling? The higher the ambient temperature outside the refrigerated vehicle , the worse the corresponding cooling effect. For example, the prolonged exposure of refrigerants under the sun and the high temperatures in summer are very severe tests for refrigerators. If the temperature on the chiller display does not reach the desired temperature of the goods, the chiller is negatively acting.
Ice cream delivery temperature is minus eighteen degrees, packing, opening the refrigerator cold box, the temperature indicator shows up to three or four degrees, or even seventy-eight degrees, do not be nervous This is just the temperature of the air inside the container. As the effect of the chiller continues, the temperature of the display will drop, and the temperature will drop in a short time, and the quality of the goods will not have any problems. The temperature of the display only shows the temperature of the air in the refrigerated compartment. It does not represent the temperature of the air inside the compartment. The specific heat of the air is relatively low and it is very easy to cause the temperature to rise. However, it does not mean that the temperature of the cargo has risen.
The advantage of large refrigeration capacity is that the cooling rate of the box is fast, the pressure in the compressor system drops quickly, and the horsepower consumption of the engine is less. However, the disadvantage is that the amount of electricity consumed by the battery is relatively large, and the battery is often depleted, and the phenomenon of fire cannot be sustained. This is particularly the case with diesel vehicles. The best principle for refrigerating trucks to install refrigerators is to match them. It's not good if they are big and small.
PTA Powder
Main application:Repair and strengthen workpiece surface, significantly
Welding method:PTA welding
Main equipment:PTA welding machine
Flame core temperature: about 10000℃
Technological characteristics:PTA has high temperature, concentrated energy, stable combustion, small heat affected zone, fast welding speed, high production efficiency, easy to obtain low dilution rate of surfacing layer, surfacing layer and workpiece matrix are metallurgical bonding,, bonding strength is high.
PTA welding technology is one of surface strengthening methods, which has high deposition rate, low dilution rate, and could be applied with many kinds of powder. The manufacturing craft of PTA powder is normally gas atomization, which reduces satellite of powder. We supply 4 main categories of PTA powder: Nickel-based alloy powder, Iron-based alloy powder, Cobalt-based alloy powder and Mixed Powder.
Nickel Based Alloy Powder possesses high temperature resistance and wear resistance, it is the most popular alloy powder applied by PTA welding both domestically and internationally. Coating hardness is within the range of HRC 30-60. It could be applied to various industries like agriculture, plastic, paper, marine and steel making where wear and corrosion protection needed. Some examples are plunger, moulds, pump leaf and screw.
Iron Based Alloy Powder is more widely used and a more economic choice. With high abrasive resistance, it is more commonly applied to mining tools, drilling tools and mixers of iron and steel making industry, coal industry, shaft, oil and energy industry.
Cobalt Based Alloy Powder is recommended for corrosion and oxidation resistance, with better hot hardness values than equivalent Nickel based alloy powder. It is widely applied to steel making industry, coal industry and mining industry.
Mixed powder mainly refers to NiCrBSi mixing with other hard-phase powder such as cast tungsten carbide and other cemented alloy powder, which allows the powder better hardness around HRC60 and excellent abrasion resistance.
Mixed powder is more often used for mining equipment for oil sands, lignite, oil drilling tools, excavator buckets, extrusion screws for plastic processing, grain and oil processing, etc.
PTA Powder,Iron Based Alloy Powder,Cobalt Based Alloy Powder,Nickel Based Alloy Powder
Luoyang Golden Egret Geotools Co., Ltd , https://www.xtccarbide.com