Ka taea e te wai te turuturu mā roto i te silicone?

 

Wai Wai me te Kohu Wai: E Rua Ngā "Tātari"

1) Te turuturu o te wai

Ko te silicone e whakamahia tika ana ka ārai i te wai wai. I te nuinga o ngā wā, ka uru te wai nā:

• Kāore i oti te hipoki o ngā pītiti, ngā ira angiangi rānei
• Te koretake o te whakarite o te mata (hinu, puehu, matū tuku)
• Te nekehanga e pakaru ana i te raina here
• Ngā mirumiru hau, ngā āputa, ngā ngatata rānei nā te koretake o te whakamaroke
• Te matū silicone hē mō te papa (he iti te piri)

Ka taea e te pītiti silicone piri tonu, e tu atu ana i te tauhiuhi, te ua, tae atu ki te ruku poto i runga i te hoahoa, te matotoru, me te āhua o te hononga.

2) Te urunga mai o te kohu wai

Ahakoa kei te ora tonu te silicone, he maha ngā elastomers silicone e āhei ai te horapa puhoi o te mamaoa wai. Ehara tēnei i te " turuturu" e kitea ana pērā i te kōhao—he rite tonu ki te haumākū e heke haere ana mā roto i te kiriuhi.

Mō te tiakitanga hikohiko, he mea nui taua rerekētanga: tera pea ka kitea tonutia te makuku i roto i tō PCB mō ngā marama/tau mena ka uru te matū silicone ki te kohu, ahakoa ka ārai i te wai.

He aha i whakamahia ai te Silicone hei Encapsulant

A whakakī siliconekāore i whiriwhiria mō te ārai wai anake, engari mō te pono whānui hoki:

• Te pāmahana ratonga whānui:he maha ngā silicones e mahi ana mai i te-50°C ki te +200°C, me ngā māka motuhake teitei ake.
• Ngāwari me te whakamamae i te ahotea:Mā te iti o te modulus ka tiaki i ngā hononga honohono me ngā wāhanga i te wā e huri ana te wera.
• Ātete ki te UV me te huarere:Ka mau te silicone ki waho, ki te whakaritea ki te nuinga o ngā polymer waro.
• Te ārai hiko:Ka tautoko te mahi pai o te hikohiko i ngā hoahoa hikohiko ngaohiko teitei me ngā hoahoa hikohiko tairongo.

Ara, he maha ngā wā ka whakapai ake te silicone i te roa o te ora ahakoa ehara i te "ārai makuku tino pai" te whāinga matua.

He aha te mea e whakatau ana mēnā ka uru te wai mā roto i te silicone?

1) Te kounga me te matotoru o te rongoā

He māmā ake te uru o te kohu wai ki te paninga angiangi, ā, he māmā ake te pakaru o ngā pīrere angiangi. Mō te hiri, he mea nui te matotoru ōrite. Mō te whakatō/whakakīkī, mā te whakanui ake i te matotoru ka taea te whakaroa i te tuku makuku me te whakapai ake i te tiaki ā-ringa.

2) Te piri ki te papa

Ka taea e te silicone te piri kaha, engari kāore e aunoa. Tērā pea me:

• Horoi/whakakore hinu whakarewa
• Te whakakoi (mēnā e tika ana)
• He paninga i hangaia mō te here silicone

I roto i te mahi whakaputa, ko te korenga o te piri tetahi o ngā tino take o ngā " turuturu," ahakoa he pai te silicone tonu.

3) Kōwhiringa rauemi: RTV vs. tāpiri-whakaora, whakakī vs. kore whakakī

Kāore e rite te whanonga o ngā silicone katoa. Ka pā te hanganga ki:

• Te mimiti i te wā e mākū ana (ka whakaitihia e te mimiti iti ngā āputa iti)
• Te Tauwehenga (te piko me te pakari)
• Ātete matū
• Te tere horapa o te makuku

Ka whakaitihia e ētahi silicone kua whakakīia me ngā hanganga motuhake kua whakareihia he arai-ārai te urunga ki te whakataurite ki ngā silicone paerewa, he kaha te manawa.

4) Te hoahoa hononga me te nekehanga

Ki te whānui/whakaiti te huihuinga, me uru te hiri ki te nekehanga me te kore e tihore. He painga nui te ngāwari o te silicone i konei, engari mēnā ka whakaratohia e te hoahoa hononga he wāhi here e tika ana, ā, ka karohia ngā kokonga koi e kukume ana i te ahotea.

Aratohu Whaihua: Āhea te Rawa o te Silicone—me te Āhea Kāore

He kōwhiringa pai te silicone ina hiahia koe ki:

• Te hiri i te huarere o waho (ua, tauhiuhi)
• Ātete wiri/pāmahana
• Te whakamarumaru hiko me te urunga miihini

Whakaarohia ētahi atu huarahi kē atu, ētahi atu arai rānei ina hiahiatia:

• Te ārai roa i te urunga o te makuku ki roto i ngā taputapu hiko tairongo
• Hiri "ātete" tūturu (ehara te silicone i te ātete)
• Te rumaki tonu me ngā rerekētanga pēhanga

I ēnei wā, he maha ngā rautaki a ngā kaihangarau: he whakakī silicone hei whakamamae i te ahotea + he kēke whare + he paninga conformal + he whakamaroke, he kiriuhi hau rānei, i runga i te taiao.

Raina Matua

Kāore te wai e turuturu i te nuinga o te wāmā rotote silicone kua whakamaroketia hei wai—ko te nuinga o ngā raruraru ka puta mai i te piripono ngoikore, ngā āputa, ngā hapa rānei. Engari ka taea e te mamaoa wai te uru mā roto i te silicone, koia te take kāore i te ōrite tonu te "ātete wai" me te "ātete makuku" i roto i te tiaki hiko. Mena ka kōrero mai koe ki ahau mō tō whakamahinga (whare o waho, ipu PCB, hohonutanga rumaki, awhe pāmahana), ka taea e au te taunaki i te momo encapsulant silicone tika, te matotoru ūnga, me ngā whakamātautau whakamana (whakatauranga IP, whakamātautau rumaki, huringa wera) kia rite ki ō whāinga pono.