What is the temperature of the LCP material and what is the temperature of the LCP injection molding

The molding temperature of LCP plastic raw materials is high, and the melting temperature is in the range of 300 425 due to its different varieties.

Forming temperature 300 390 ; Mould temperature 100 260 ; Molding pressure 7 100MPa, compression ratio, molding shrinkage.

Precautions for the use of LCP materials.

The melting speed is adjusted to the maximum, the back pressure is 0, and the material temperature is also adjusted very high in order to adjust the glue shortage. Now this is a problem, and the important factors for melt stability are temperature and reasonable back pressure. The above conditions will inevitably produce instability, the faster the sol speed, the more shear heat will be generated, and the temperature of the material will be much higher than the heating temperature, that is, the set temperature.

For the adjusters at the time, the effect of temperature was not immediately felt, because the rise in the temperature of the material was a slow process, which involved the molding cycle.

The forming cycle of LCP material is aimed at guaranteeing the fastest cycle time. When the cycle is fast, the shear heat generated by the fast rotation speed will not have enough time to release, because the heating temperature will make up for the lack of temperature in the early stage of generation and set a relatively high temperature, so as to ensure that the temperature of the fast cycle is insufficient, and the shear heat belongs to additional heating.

Different models of LCP have different heat deflection temperatures.

LCP E130i is temperature resistant to 275 degrees.

LCP E4008 Sumitomo Japan temperature resistance 313 degrees, E6008 temperature resistance 279 degrees.

LCP 6130L DuPont has a temperature resistance of 265 degrees and a temperature resistance of MG350 is 256 degrees.

In addition to E4008, there are models with a temperature resistance of more than 300 degrees, and I will not list them all.

The temperature resistance mentioned above is expressed as the heat deflection temperature.

The way of plastic --- Chen Guofei.

I didn't mention a word about how many points I said.

LCP is a high-temperature resistant product, direct high-temperature injection molding.

The processing conditions of LCP are different for different models, such as the processing conditions of Poly LCP E130i, the drying temperature is 160-180 degrees, the mold temperature is 110 degrees, and the molding temperature is 300-320 degrees. The temperature of Sumitomo's LCP E4008 is a bit higher than that of the E130i. Therefore, it is necessary to determine the processing conditions according to the different types of LCP.

LCP drying temperature: 140-170', mold temperature, 80-120', barrel temperature, A355-400'b330-370'c290-320'Injection pressure: 15-45mpa 150-450bar, speed 100-300mm, see, back pressure: 0-2mpa, screw speed: 100-200rpm, molding shrinkage: flow direction, vertical direction.

The processing temperature is generally from more than 250 degrees to more than 370 degrees, depending on the grade.

Which manufacturer and brand are you: This should be explained that different manufacturers and brands have different molding methods.

The saturated water absorption rate of LCP is only about about that, and the water absorption rate cannot be improved, and drying is nothing more than 140-160 degrees Celsius, 3-4 hours.

LCP is a new solution for cooling high-calorific IT equipment.

The full name of LCP is LiquidCoolingPackage, which is a solution that uses liquid refrigerated air, which has high refrigeration efficiency and low operating noise, and only cools the inside of the HPC cabinet. This new refrigeration system is completely different from the traditional precision air conditioning under the air supply refrigeration, so that the cooling capacity of the traditional 4KW cabinet is increased to 30KW cabinet, thus solving the most important problem of the operating environment of IT equipment.

The refrigeration principle of LCP is to first use the fan in the LCP cabinet to pump the hot air from the back of the server to the liquid cooling cabinet, use the LCP internal water to control the hot and cold air, and then blow the cold air to the front of the server, and then return the hot water to the outdoor circulating refrigeration equipment, through this process of continuous circulation to achieve the refrigeration effect. Image understanding, the difference between liquid cooling equipment and precision air conditioning is like the difference between refrigerator refrigeration and cold storage refrigeration. For the computer room, LCP packages each cabinet as a "refrigerator", while the precision air conditioner refrigerates the entire computer room into a "cold storage", and the difference in energy consumption is self-evident.

Free cooling is more economical.

The energy savings of using LCP are not limited to refrigeration. LCP has a different system called FreeCooling. The temperature of the inlet of the LCP needs to be less than 15 degrees Celsius, and when the ambient temperature is lower than 15 degrees Celsius, the liquid can be cooled without circulating refrigeration equipment, and only natural cooling capacity can be used.

It's all self-regulating and doesn't require manual intervention.

Industrial liquid crystal polymers.

Industrial products. Industrial liquid crystal polymer (LCP) was originally a solubilized polyphenylene terephthalamide (Kevlar) developed by DUPONT in the United States. Since this type of polymer can only be processed in solution, it cannot be melted, and can only be used as fibers and coatings, which is a special engineering plastic raw material.

There are many types of glass fibers, as well as LCP. It is not possible for the enhanced LCP to be deformed at high temperatures, and it is necessary to consider the temperature, force, time, material shape, and other conditions of use. In terms of heat deflection temperature, the enhanced LCP is about 270-330 degrees Celsius.

How much fiber? Generally around 260.