1. Mama

He rauemi māmā ake te kirihou, ā, ko tōna matotorutanga he 0.90-2.2. E mārama ana, ka taea e ngā kirihou te mānu i runga i te wai? Ina koa ko ngā kirihou pahuka, nā te mea he moroiti ngā pūwero i roto, he māmā ake te kakano, ā, ko te matotorutanga he 0.01 noa iho. Mā tēnei āhuatanga ka taea te whakamahi i ngā kirihou ki te hanga hua e hiahia ana kia māmā ake te taumaha.

2. Te pumau matū tino pai

He pai te ātete o te nuinga o ngā kirihou ki te waikura ki ngā matū pēnei i te waikawa me te kawakore. Ina koa, ko te polytetrafluoroethylene (F4), e mōhiotia whānuitia ana ko te Kīngi o ngā Kirihou, he pumau ake te matū i te koura, ā, e kore e pirau ahakoa kohuatia ki te "aqua regia" mō te neke atu i te tekau hāora. Nā te mea he tino pai te pumau o te matū o te F4, he rauemi tino pai te ātete ki te waikura. Hei tauira, ka taea te whakamahi i te F4 hei rauemi mō te kawe i ngā paipa wai waikura me te matotoru.

3. Ngā āhuatanga ārai hiko tino pai

He ngoikore ngā kirihou noa ki te kawe hiko, ā, he tino nui te ātete o te mata me te rōrahi, ka eke ki te 109 ki te 1018 ohms te maha. He nui te ngaohiko pakaru, ā, he iti te uara o te mate uruhanga. Nō reira, he whānuitia ngā whakamahinga o ngā kirihou i roto i te umanga hiko me te umanga mīhini. Pērā i ngā taura whakahaere kirihou kua whakamahanatia.

4. He ngoikore te kawe wera, me te whakaiti haruru me te pānga mimiti ru

I te nuinga o te wā, he iti noa te kawe wera o te kirihou, he rite ki te 1/75-1/225 o te maitai, me ngā pūwero iti o te kirihou pahuka.

Kei roto he hau, he pai ake te ārai wera, te ārai oro me te ātete ru. Hei tauira, ko te kawe wera o te polyvinyl chloride (PVC) he 1/357 noa iho o te maitai me te 1/1250 o te konumohe. Mō te kaha ārai wera, he 40% teitei ake ngā matapihi kirihou karāhe kotahi i ngā matapihi konumohe karāhe kotahi, ā, he 50% teitei ake ngā matapihi karāhe takirua. I muri i te whakakotahitanga o te matapihi kirihou ki te karāhe tuwhera, ka taea te whakamahi i roto i ngā whare noho, ngā whare tari, ngā wāhanga, me ngā hōtēra, ka penapena i te whakamahana i te takurua me te penapena i ngā whakapaunga hauhautanga i te raumati, ā, he tino kitea ngā painga.

5. He whānui te tohatoha o te kaha ā-ringa me te kaha motuhake teitei ake

He rite te pakeke o ētahi kirihou ki te kōhatu me te maitai, ā, he ngawari ētahi ki te pepa me te hiako. Mai i te tirohanga o ngā āhuatanga miihini pēnei i te pakeke, te kaha kume, te roa, me te kaha pānga o ngā kirihou, he whānui te whānuitanga o te horapa, ā, he maha ngā kōwhiringa hei whakamahi. Nā te iti o te taumaha motuhake me te kaha teitei o te kirihou, he teitei te kaha motuhake. Ki te whakatauritea ki ētahi atu rauemi, he mārama ngā ngoikoretanga o ngā kirihou, pēnei i te mura, te pakari ake i ngā konganuku, te ātete ngoikore ki te koroheketanga, me te ātete ki te wera.

Nō reira, ka whakamahia e ā mātou hua kirihou ngā rauemi kirihou e ai ki te āhua o te hua.
Hei tauira:pūnuko ngā hua he PP kounga kai me te PP kounga hauora.
Tewerongahe PP kounga hauora, ā, ko tengongo whakamātautauhe PP, he PS rānei te taumata hauora. Ko tepounamu rehuhe ranunga o te PET me te PP.

Nā te meate pokepokea aiHe tino pai ngā rauemi e whakamahia ana e mātou, arā, he maitai pokepoke, pērā i te 718. He tino pai te kounga o ngā hua kirihou i hangaia. E 13 tau ō mātou wheako hītori ki tēnei mara, he tino ngaio.