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Pneumatic tubing is often selected by outside diameter, pressure rating, color, and price.That may be the case for many standard airlines, but it ignores one critical characteristic that may be of great importance in the case of vacuum systems, high-voltage circuits, and low-flow instruments: air permeability. In other words, gas molecules are highly likely to flow through an untarnished polymer membrane, thus, reducing pressure on the designed side and degrading the system’s performance. The extent of permeation depends on the plastic material, wall thickness, temperature, pressure differential, and gas type. Therefore, permeability has to be considered along with the bending…

Polyurethane Pneumatic Tubing Rarely made from base resin only. A variety of stabilizers, processing aids, pigments, lubricants, and modifiers may be added to improve its resistance to heat, moisture, sunlight, chemicals, abrasion, flexing, or other factors. The challenge is that one additive may negate the effect of another, such as by making the material too hard or too flexible. A compound that adds flame resistance could also lower the tensile strength or cause problems like discoloration. Buyers considering multiple additives should ask how they complement each other and what testing was done on the final tubing. It is also important to…

  In choosing polyurethane pneumatic tubing for use in machinery, the consumer can get an engineering specification full of data regarding materials and numbers. Nonetheless, all this information is only important to the extent that it is relevant to the application. Working pressure, bend radius, temperature range, chemicals exposure, and fittings compatibility are some of the factors that determine how relevant the information will be. Pneumatic tubing datasheets serve the purpose of avoiding complications associated with choosing the wrong tubing. What information should engineers check first on a pneumatic tubing datasheet? A technical data sheet generally provides plenty of information, but…

  In pneumatic tubing manufacture, the preparation of material prior to extrusion is likely to have an impact on the uniformity and performance of the tubing itself. In cases where multi-material tubing is manufactured using multiple types of polymer material in the construction, the control of moisture levels prior to processing assumes importance for manufacturers. The selection of tubing manufacturers requires not only consideration of the final properties of the tubing but also the manner in which the materials used in the manufacture process are processed. Why does material drying matter in pneumatic tubing manufacturing? Before polymer materials enter the extrusion…

  공압 튜브를 구매할 때는 일반적으로 여러 요소를 고려합니다. 튜브의 크기, 최대 작동 압력, 유연성 및 가격은 모두 잠재적 구매자에게 중요한 고려 사항입니다. 그러나 공압 튜브 생산과 관련된 다른 요소들도 공급업체 제품의 일관성과 구매자의 서비스 경험에 상당한 영향을 미칠 수 있습니다. 폴리우레탄 튜브의 경우, 튜브 제조에 사용되는 TPU 수지의 용융 흐름 지수(MFI)는 튜브 재질을 나타내는 가장 중요한 지표 중 하나입니다. TPU 수지의 MFI는…

  공압 시스템 제작자와 산업용 공압 튜브 구매자에게 튜브의 품질은 단순히 공기를 이동시키는 것 이상의 의미를 지닙니다. 품질이 떨어지는 튜브는 누출, 불량한 굽힘, 균열 및 조기 파손으로 이어질 수 있습니다. 폴리우레탄 공압 튜브를 선택할 때 많은 고객은 직경, 색상 및 가격을 고려합니다. 그러나 튜브의 품질을 결정하는 가장 중요한 요소는 제조 공정입니다. TPU 압출 공정, 재료 품질, 냉각 및 최종 검사 시 품질 관리는 자동화 장비 및 산업 응용 분야에 사용되는 공압 튜브의 품질을 좌우하는 결정적인 요소입니다. 폴리우레탄 튜브에서 압출 공정이 중요한 이유는 무엇일까요?