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Menene la'akari don zabar O-ring?

A cikin amfani da O-rings, takamaiman yanayin aiki da yanayin amfani yana buƙatar la'akari.Zazzabi da matsa lamba za su sami tasiri da asara akan hatimin O-ring.Don haka, ana buƙatar la'akari da maki 5 masu zuwa a cikin amfani da hatimin roba na O-ring:

1. Matsakaicin aiki da yanayin aiki;

2. Daidaitawar samfurin tare da matsakaicin aiki, sa'an nan kuma la'akari da matsa lamba, zazzabi, ci gaba da aiki lokaci, sake zagayowar aiki da sauran yanayi a hatimi, da kuma yawan zafin jiki da ya haifar da gogayya zafi kuma yana bukatar a yi la'akari a cikin juyi lokatai;

3. Seal form: Lokacin da aka shigar da hatimin shaft radially, bambancin tsakanin diamita na ciki na O-ring da diamita da za a rufe ya kamata ya zama ƙananan kamar yadda zai yiwu;don hatimin rami, diamita na ciki ya kamata ya zama daidai ko ɗan ƙarami fiye da diamita na tsagi.Lokacin shigar da axially, ya kamata a yi la'akari da jagorancin matsa lamba.Lokacin amfani da matsa lamba na ciki, diamita na waje na O-ring ya kamata ya zama kusan 1% ~ 2% ya fi girma fiye da diamita na tsagi.Lokacin da diamita na waje yana ƙarƙashin matsin lamba, diamita na ciki na O-ring ya kamata ya zama kusan ƙarami fiye da tsagi 1% ~ 3%.

4. Sauran abubuwan da suka shafi aikin rufewa

1) Tauri: Ƙayyade adadin matsawa na O-ring da matsakaicin rata mai ƙyalli mai ƙyalli na tsagi;

2) Extrusion rata: tsarin matsa lamba, O-ring sashe diamita da taurin abu suna da alaka.

3) Matsi nakasar dindindin: A yanayin matsin lamba, don hana nakasar filastik dindindin.Matsakaicin matsawa da O-ring ya ba da izini shine kusan 30% a cikin hatimi a tsaye kuma kusan 20% a cikin hatimai masu ƙarfi.

4) Adadin matsawa: Don tabbatar da tsauri a cikin tsagi na O-ring, yakamata a adana adadin matsawa na farko.Adadin matsawa na farko dangane da diamita na sashe yawanci kusan 15% ~ 30% ne a cikin hatimin a tsaye.Yana da kusan 9% ~ 25% a cikin hatimi mai ƙarfi.

5) Tashin hankali da matsawa: Don hatimin rami, O-ring yana cikin yanayin shimfidawa, kuma matsakaicin matsakaicin izini shine 6%.Don hatimin shaft, O-ring yana matsawa tare da hanyar kewayawa, kuma matsakaicin damfara da za a iya yarda da shi shine 3%.

5. Ana amfani da O-ring don ƙananan motsi na motsi na motsi da kuma hatimin shinge mai jujjuya tare da gajeren zagayowar aiki.Lokacin da keɓaɓɓen gudun ya kasance ƙasa da 0.5m/s, zaɓin O-ring zai iya dogara ne akan ƙa'idodin ƙira na yau da kullun;a lokacin da gefe gudun ne mafi girma fiye da 0.5m / s , Wajibi ne a yi la'akari da sabon abu cewa elongated roba zobe shrinks bayan da aka mai tsanani, da kuma sealing zobe ya kamata a zaba domin ciki diamita ne game da 2% girma fiye da diamita. shaft ɗin da aka rufe.

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Lokacin aikawa: Agusta-26-2022