Yiziphi izinto ezivame ukusetshenziswa uphawu kwama-valves?

Kunezinhlobo eziningi zama-valve, kepha umsebenzi oyisisekelo uyefana, okungukuthi, ukuxhuma noma ukunqamula ukuhamba okuphakathi. Ngakho-ke, inkinga yokubopha uphawu le-valve ivelele kakhulu.

Ukuqinisekisa ukuthi i-valve inganqamula ukuhamba okuphakathi ngaphandle kokuvuza, kuyadingeka ukuqinisekisa ukuthi uphawu lwe-valve luqinile. Kunezizathu eziningi zokuvuza kwe-valve, kufaka phakathi ukwakheka okukhona okukhona, indawo yokuxhumana esoke uphawu engonakaliso, izingxenye ezivuthayo, ezivulekile phakathi komzimba we-valve kanye ne-bonnet, njll. Zonke lezi zinkinga zingaholela ekubekeni kahle kwe-valve. Yebo, ngaleyo ndlela kwakha inkinga evuzayo. Ngakho-ke, ubuchwepheshe be-Valve Seaning ubuchwepheshe obubalulekile obuhlobene nokusebenza kwe-valve kanye nekhwalithi, futhi kudinga ucwaningo oluhlelekile nolujulile.

Izinto zokubopha ezivame ukusetshenziswa kwama-valves ikakhulukazi zibandakanya izinhlobo ezilandelayo:

1. I-NBR

Ukumelana kwamafutha amahle kakhulu, ukumelana okuphezulu okuphezulu, ukumelana nokushisa okuhle, ukunamathela okuqinile. Okubi kwaso kungukumelana kwamazinga okushisa okuphansi, ukumelana kabi kwe-ozone, okumpofu, izici kagesi ezingezinhle, nokuqina okuphansi kancane.

2. Epdm

Isici esibaluleke kakhulu se-EPDM ukumelana nokuphikiswa kwe-opidation ephezulu, ukumelana kwe-ozone nokumelana nokugqwala. Njengoba i-EPDM ingeyomndeni wePolyolefich, inezici ezinhle kakhulu ze-Vulcan.

3. I-PTFE

I-PTFE inokumelana okuqinile kwamakhemikhali, ukumelana namafutha amaningi nama-sol (ngaphandle kwama-ketones kanye nama-esters), ukumelana kwesimo sezulu okuhle nokuphikiswa okubandayo kwe-ozone, kodwa ukumelana kabi.

4.

Qaphela: I-Iron Iron isetshenziselwa amanzi, igesi kanye nemidiya kawoyela ngokushisa kwe≤100°C kanye nengcindezi yokuqothuka ye≤1.6MPA.

5. I-Alloy Esekelwe Ku-Nickel

Qaphela: Ama-alloys asuselwa ku-nickel asetshenziselwa amapayipi anokushisa kwe--70 ~ 150°C kanye nengcindezi yobunjiniyela pn≤I-20.5MPA.

6. I-Copper Alloy

I-Copper Alloy inokuvimbela okuhle futhi ilungele amanzi namapayipi omsila anokushisa≤-Mashumi℃kanye nengcindezi yokuzithiba≤1.6MPA.