why do hot ends have a ptfe tube | BESTEFLON

Why do 3D printers use PTFE tubes

With the rapid development of the times, 3D printers are a kind of rapid prototyping technology, also known as additive manufacturing. Although the failure rate of 3D printers is low, once a failure occurs, it will not only affect the printing quality, but also waste time printing materials and even damage the machine. 3D printers have a historic problem, which is easy to block! Many people guess that the temperature of the throat tube is too high, because it is additive manufacturing, many raw materials need to be transported in the melted state of the printer head, and the transport tube must meet the space requirements of the printer, so many manufacturers now use it instead. Built-in PTFE tube, the thermal conductivity of PTFE and stainless steel is low, which can effectively reduce the temperature of the throat. With PTFE tube, the failure rate of the plug is significantly reduced. In this way, ptfe tubes have become the best choice for 3D printers. Here, as the ptfe tubing manufacturers, Huizhou Zhongxin Fluoroplastic Tube Co., Ltd. will explain to you why 3D printers cannot do without PTFE tubes

In 2015, the well-known 3D printer manufacturer Airwolf released its first civilian-level 3D printer. Ptfe tubes are used in many key components. Because engineering grade materials require high continuous temperatures, the requirements for components are very high. Therefore, the 3D printer uses a PTFE tube as the feeder tube. In 3D printers, PTFE tubes are also widely used as the lining of extruder head tubes. The main reasons here are

Ptfe performance:

1. Non-stickiness: PTFE is inert, almost all substances are not bonded with PTFE tube, and very thin films also show non-stick properties.

2. Heat and cold resistance: PTFE tube has excellent heat and low temperature resistance. It can withstand temperature up to 300℃ in a short time, and the melting point is 327℃. It will not melt at 380℃. Generally, it can be used continuously between 240℃ and 260℃. It has remarkable thermal stability. It can work at freezing temperature. No embrittlement, cold resistance to 190℃

3. Lubricity: PTFE tube has a low coefficient of friction. The friction coefficient changes when the load is sliding, but the value is only between 0.04-0.15

4. Non-hygroscopicity: The surface of PTFE tube does not stick to water and oil, and it is not easy to stick to the solution during production operations. If there is a small amount of dirt, it can be removed by simply wiping. Short downtime, saving working hours and improving work efficiency

5. Corrosion resistance: PTFE tube is hardly corroded by chemicals, and can withstand all strong acids (including aqua regia), strong alkalis, and strong acids except molten alkali metals, fluorinated media, and sodium hydroxide above 300°C. The role of oxidants, reducing agents and various organic solvents can protect parts from any kind of chemical corrosion

6. Weather resistance: no aging, better non-aging life in plastics

7. non-toxic: in a normal environment within 300 ℃, physiologically inert, non-toxic can be used for medical and food equipment

8. Insulation: Very good dielectric constant and high insulation

9. The friction coefficient is small, and the fluidity of the raw materials is good

Due to the excellent performance of ptfe tube, it is currently used in a wide range of applications. It can be used for pipeline anti-corrosion, high and low temperature resistance, and corrosion resistance. Used in harsh environments such as lubrication, electronics, electrical appliances, aerospace, and medical treatment

Company introduction:

Huizhou Zhongxin Fluorine Plastic Industrial Co., Ltd nor only owns the most high quality design team and complete quality assurance system, but also is equipped with the advance automation production line with strict quality control system. Besides, the raw material Zhongxin selected all from the qualified brands such Dupont, 3M, Daikin, etc. In addition, there are domestic top raw materials to choose from. Advanced equipment, high quality raw materials, reasonable price is your most idea choice.

The above is the reason why there should be a PTFE tube on the hot end. I hope it can help you.We are a ptfe tube suppliers from China.

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Post time: Mar-05-2021

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