重加工英語

O-rings’ materials assure minimal power loss over the life of the drive seal. Thus, this seal typology is technically superior to other types of construction.

The selection of the most suitable materials for the sliding ring and elastomeric part ensure high wear resistance. Mechanical Face Seals guarantee a fully adequate corrosion protection, as well as optimal lubricant and temperature resistance.

Polyamides are the most widely used thermoplastics and have the advantage of having excellent mechanical properties which remain constant even at high and low temperatures and a low coefficient of friction.

An essential functional feature of the Mechanical Face Seal is a robust construction form combined with very long lifecycles.

UHMW-PE polyethylene is a pressed technopolymer with very high molecular density. Compared to polyethylene with lower densities it has better mechanical characteristics, better resistance to wear and better smoothness having a lower coefficient of friction.

Polyoxymethylene (POM, commonly known as Acetal Resin) is a semi-crystalline thermoplastic technopolymer popular for its excellent mechanical characteristics. It is used for the production of precision parts that require high rigidity, as an alternative solution to replace some metals such as steel, brass, aluminium. It has a low coefficient of friction and great dimensional stability, excellent sliding properties, resistance to wear and reduced moisture absorption.

Modified PTFE (or MPTFE) is a further development of regular PTFE with a different chemical structure, reducing significantly its molecular weight. This compound presents a high quality and poreless character.

重加工意味

Being a hygroscopic material, i.e. it has a high humidity absorption, it is not suitable for applications involving contact with water or when demanding tolerances are to be maintained, especially in humid environments (for this reason PA is not used in contact with food).

It is a very versatile plastic material and used in very many fields, offering durability to wear and good smoothness characteristics.

相关成果分别以“Oxidative Upcycling of Polyolefin Wastes into the Dynamically Cross-Linked Elastomer”和“Upcycling of Polyethylene Wastes to Valuable Chemicals over Group VIII Metal-decorated WO3 Nanosheets”为题发表在Macromolecules和Advanced Science上。

重加工読み方

The elastomeric parts, as a secondary seal, take over the function of the elastic force of the spring, the static sealing between the sliding ring and the housing as well as the torque transmission.

Mechanical Face Seals consist of two metal seals and two elastomeric components, which are mounted into two separate housings.

PEEK is a semi-crystalline thermoplastic known chemically as polyetheretherketone with excellent chemical resistance, very good mechanical characteristics, low permeability and with the best tensile strength coefficient of plastics. This material can be filled with glass fibre, carbon, PTFE, graphite and other components.

Mechanical Face Seals are especially used for rotary shafts in severe and dirty environments. Due to their outstanding technical features Mechanical Face Seals have achieved worldwide distribution.

FFKM materials are elastomeric compounds designed with high fluorine content to offer extreme chemical resistance, similar to PTFE, and at the same time the elastic qualities of an elastomer.