제목없음

 

 
盘根(编制盘根)（packing）

 

 

제목없음

 

 

 

PACKING PRODUCT

 

Packing (packing preparation) (packing) also called sealing packing, usually by the thread relatively soft woven, typically a square or rectangular cross-sectional area, the circular sealing strips is filled in the cavity, in order to achieve the sealing . The earliest packing cotton and other fibers are tucked in to prevent fluid leakage channel leakage, mainly for water pumping machinery seal. As fillers wide variety of sources, processing easy, inexpensive, reliable sealing, simple operation, so still in use. Today packing is widely used in pumps, compressors, vacuum pumps, mixers and ship propeller shaft seals, piston pumps, reciprocating compressors, reciprocating chillers seal, and a variety of rotating the valve stem seals, etc.

Preparation of packing：
Braided expanded graphite packing is made by weaving, in addition to strong oxidant used in many situations, can be used for boiling water, high temperature, high pressure steam, heat transfer medium, oil, acid, alkali, hydrogen, ammonia, an organic solvent, hydrocarbons, cryogenic liquids and other media. It is a unique new seal packing.

Uses:
widely used in dry petroleum, chemical, electric power, metallurgy, machinery, paper and other industries centrifugal and reciprocating pumps, valves, piping and other seals.

Introduce

 

Packing also called sealing packing, usually by a softer the thread woven through the cross-sectional area of the square is filled in the seal strip cavity, in order to achieve seal. Today, the main graphite packing, various fiber as the main material, depending on the requirements, the use of carbon fiber, copper, 304,316 L, Inconel wire and other materials strengthened.

Material

Kevlar Series
Gold aramid fiber packing , yellow Kevlar fiber packing , aramid fiber woven PTFE packing , aramid fiber woven PTFE packing with aramid fiber packing in the series as the main material , repeatedly impregnated lubricant , PTFE emulsion and other precision compiled . A better high resilience , chemical resistance , low cold flow and high line speed, compared with other types of packing , it can resist the particulate medium and the higher temperature crystallization . Can be used alone or combined with other packing . Mainly used for multi- media particles , easy to wear conditions .

PTFE Series
White PTFE packing , PTFE packing , white PTFE woven aramid fiber packing , PTFE woven aramid fiber packing , PTFE pre- oxidized fiber packing, White PTFE packing silicone oil dip , white four this series of fluorine- dipped heart packing packing with PTFE as the main material . Has excellent chemical stability, corrosion resistance , sealing, lubrication is not sticky and good anti-aging endurance. Able to +250 ℃ to -180 ℃ temperature long-term work , in addition to molten metal and liquid sodium fluoride , the ability of all other chemicals , nor boiled in aqua regia since changed. Mainly used for working conditions can not be polluted environment sanitary , corrosive and other demanding , high- speed , easy to wear , etc. conditions .

Graphite Series
Flexible graphite packing , metal reinforced graphite packing , carbon fiber reinforced graphite packing , carbon fiber reinforced graphite packing metal packing characteristics of the series as the main material of graphite Seiko compiled . With good self- lubricating properties and thermal conductivity , low coefficient of friction , versatility, flexibility , high strength , has a protective effect on the shaft and so on. Depending on the requirements, can be carbon fiber, copper , 304,316 L, Inconel wire and other materials strengthened. Mainly used in high temperature and pressure conditions .

Carbon Fiber Series
Carbon fiber reinforced graphite packing , carbon fiber metal reinforced graphite packing the series packing is mainly of carbon fiber as thematic material , carbon fiber is an excellent mechanical properties of the new material , carbon fiber without creep , fatigue resistance , thermal expansion coefficient, corrosion-resistant good , good thermal conductivity . Mainly used in high temperature and pressure resistant conditions .

With a plastic heart series
With super elastic silicone core coated on the inside of high quality synthetic fibers , impregnated with PTFE emulsion after repeated , lubricants, blocking agent woven. Can effectively absorb mechanical vibrations and control the leakage gap is generated due to vibration . Has excellent elasticity, self-lubricating, flexibility, abrasion resistance , high tensile strength , good chemical resistance .

High-temperature ultra-high temperature packing
The packing is made of high -quality precision woven synthetic fibers , fine structure , with excellent high temperature performance, low thermal conductivity , non- flammability , etc. . Widely used in ultra-high temperature , high pressure harsh environment of water, steam , acids, alkalis and other media. Fireproof insulation for pipes , etc. , containers , heaters , manholes, furnace door heaters, temperature , etc. The static sealing flange . Promote the use of high-temperature steel , blast furnace combustion valve only. In addition to the material but also have Acrylic packing , high water based packing , Zhu hemp packing , etc. to meet the needs of a variety of mining .