Ina tukuna e au he puranga ohononga tokotoko miromai i tō mātou wheketere i Xinchang, ko te pātai kotahi e tino rangona ana e au mai i ngā miihini hoko ko: "Me pēhea taku mōhio ka uru te miro ina tae mai ki te papaanga?" He āwangawanga tika tēnei. Ehara i te mea he raruraru noa iho te tokotoko whenua kāore e taea te hono i te mara - engari he rahunga pūnaha whenua e tatari ana kia puta. I roto i tēnei tuhinga, ka tirohia e au ngā paerewa miro, ngā tirotiro manawanui, me ngā tauira whakaaetanga e whakamahia ana e mātou i roto, ā, e taunaki ana ahau kia manatokohia e ia kaihoko i mua i te hainatanga i te ota tuatahi.

He aha te kounga o te miro i runga i te tokotoko whenua ehara i te mea iti noa iho

I roto i aku wheako, ka mahi pai te hiko whenua i tōna hononga ngoikore rawa. I roto i tā mātou whare whakaputa, kua kite mātou i ngā tauira kua whakahokia mai, he pai te paninga parahi i runga i te tinana o te tokotoko, engari kua tangohia te miro hononga i te wā e kawe ana nā te mea he wetekina te manawanui mai i te tīmatanga. I paahitia e tā mātou tīma QA te tokotoko i runga i te tirotiro tirohanga i te tauranga uta, engari i rahua i te mara i te wā o te whakaurunga takutai moana i Āwherika ki te Hauāuru i reira te kaiwhakatū e pana ana i ngā tokotoko ki roto i te oneone laterite i raro i te wā poto.

Nā te mea ko te miro te piriti ā-mīhini me te ā-hiko i waenganui i ngā wāhanga tokotoko e rua, ko te miro kāore i te pai te tapahi, kāore rānei i te pai te whakakikorua, ka noho hei pūwāhi ātete nui rawa atu i te ara whenua katoa. He mea nui taua ātete i te wā e pāngia ana e te uira, ina me marara ngā mano tini o ngā amperes ki roto i te whenua i roto i ngā maikorohekona.

Ina hangaia e mātoungā tokotoko maitai kua pania ki te parahi miro, ka tapahia, ka hurihia rānei te miro i muri i te taahiraa whakakikorua parahi. Mā tā mātou tukanga ka tiakina e tēnei raupapa te mata whakakikorua i te wā e hangaia ana, engari ko te tikanga hoki ka kitea tika tetahi hapa ā-ahu i roto i te miro i roto i te hua kua oti. Kāore he paparanga ārai huna hei huna i tētahi raruraru.

Ngā Paerewa Miro ka Tūtaki Koe i te Hokonga Whenua

Neke atu i te tekau mā rua tau ahau e kawe ana i ngā hua whenua mai i tā mātou wheketere, kua mahi tahi ahau me ngā kaihoko i roto i te neke atu i te whā tekau whenua. Ko ngā momo miro e puta pinepine ana i roto i ngā tuhinga RFQ mō ngā tokotoko whenua me ngā hononga ka taka ki roto i ngā whānau e whā:

Te Taunoa o Amerika Te Raki

Ko ngā miro UNC, e whakahaeretia ana e te ASME B1.1, e kaha ana i ngā mākete o Amerika, Kanata, me Mehiko. Mō ngā tokotoko whenua, ko ngā rahi tino noa ko te 5/8″-11 UNC me te 3/4″-10 UNC. Ko te "11″ me te "10″ e pā ana ki ngā miro mō ia inihi (TPI). Ko te diameter matua o te tokotoko UNC 5/8″-11 he 15.875 mm, ā, ko te pitch he 2.309 mm. Ka whakaputaina e mātou tēnei rahi i roto i te rahinga nui mō ngā kiritaki e tāuta ana i ngā whatunga whenua teihana iti me ngā turanga pourewa waea puta noa i te tonga o te Hononga o Amerika.

I mua, i tukuna e mātou he hononga UNC 5/8″-11 ki tētahi pāmu hiko pūngao rā i waenganui o Texas, mō ngā tokotoko whenua kua whakakikoruatia ki te parahi, e 3 mita te hohonu ki roto i te oneone uku. I kōrero te kaiwhakauru he maeneene te hononga puta noa i te puranga nā te mea i manatokohia e mātou te diameter pitch i te 14.705 mm (i roto i te awhi manawanui 2A) i runga i ia tokotoko tekau i te wā e hangaia ana.

Te Whiu ā-Motu Kotahi (UNF) — Kāore i te tino kitea engari kei te tohua tonu

E ai ki ō mātou wheako, ka puta ngā miro UNF i roto i ētahi whakatakotoranga a te Pākehā, me ngā tono hoki e pai ake ai te piko pai ake mō te ātete wiri. He rite te diameter matua o te hononga UNF 5/8″-18 ki tōna hoa UNC engari tata rua te TPI. Ko te piko pai ake he nui ake te hononga mō ia mirimita o te roa tuaka, he pai ki te oneone toka he nui ngā kaha taraiwa. Heoi, he tairongo ake ngā miro UNF ki te whakawhiti-miro i te wā huihuinga mara, nō reira ka tohutohu ahau ki ngā kaihoko e tohu ana i te UNF kia tono hoki i tētahi taura-whakauru chamfered ki te pito tāne o te hononga.

Paipa Paerewa o Peretānia (BSP) — He whānui te horapa ki te Waenganui Rawhiti me Āwherika

Ko ngā miro BSP, inā koa ko te raupapa G (whakarara) i tautuhia i roto i te ISO 228, he mea noa i roto i ngā whakaritenga mai i ngā whenua o te Moana-a-Kiwa, o Ngāiria, o Kenya, me Āwherika ki te Tonga. Kāore te hononga G1/2, G3/4 rānei e piko - engari e whakawhirinaki ana ki te taunga whakarara. Nā tēnei ka nui ake te hiranga o te manatoko i ngā āhuatanga nā te mea kāore he mahi whakapiri hei whakakapi i te iti o te rahi. I roto i ō mātou wheako ki te tukutokotoko whenua me te tokotoko whenuamai i ngā hua ki ngā kaupapa i Dubai me Lagos, ka pono te mahi a ngā hononga BSP e paahitia ana e te whakamātautau mowhiti ine i tō mātou teihana QC i roto i te oneone onepu, ātete-teitei.

Ngā Miro ISO Ine (Raupapa-M) — Te Paerewa Ao

Ko ngā miro ine i runga i te ISO 261 me te ISO 965 te mea e whakamahia ana i roto i te whenua o Ūropi, te nuinga o Āhia, Ahitereiria, me ētahi wāhanga o Amerika ki te Tonga. Mō ngā tokotoko whenua, ko te M16 me te M20 ngā rahi noa. He 16 mm te whānui matua o te hononga M16x2.0 me te 2.0 mm te piko. Ko te akomanga manawanui paerewa ko 6g (waho) / 6H (ā-roto). Nā te mea kua tautuhia ngā miro ine i roto i ngā paerewa ISO kua tangohia e te nuinga o ngā whakahaere ā-motu, ko te tauira e paahitia ana e te ine mowhiti 6g ka makona i ngā kaitirotiro ahakoa kei hea te whenua e mahi ana te kaupapa. Kei a mātou ngā hononga miro ine mō ā mātou.ngā tokotoko whenua maitai piauaume tō mātoungā tokotoko whenua parahi parakorei ngā rahi M12 ki te M24.

Te Manawanui me te Taurite o ngā Miro: Te Tikanga o ngā Tau i roto i te Mahi

Mā te ātete miro ka mōhio tātou mēnā ka taea te whakakotahi ā-ringa i ngā wāhanga e rua, mā te whakamahi i te kī, kāore rānei. Anei tētahi ripanga tohutoro mō ngā paerewa miro o te tokotoko whenua ka tūtaki koe:

I roto i tā mātou wheketere, ka whakamahia e mātou ngā ine mowhiti me ngā ine mono kua whakatikatikaina ki ēnei roopu manawanui i ia oma whakaputanga. Mō te kaihoko e arotake ana i tētahi tauira, ko te tohutohu tino whai hua ka taea e au te hoatu i runga i ōku tau i roto i tēnei mara: Ka mau tonu ahau i tētahi hononga honohono, i tētahi ine rānei e mōhiotia pai ana ki te tirotiro tauira. E iti iho i te tekau hēkona te roa o te tirotiro haere/kore haere mō ia tokotoko, ā, ka hopukina te nekehanga ā-ahu e kore pea e taea e te ine caliper anake.

Ngā Hapa Miro Noa me Me Pēhea te Kite i a rātou

I roto i ngā tau i tō mātou wheketere, kua whakarārangihia e au ngā hapa e tino puta ai ngā amuamu i te mara. Anei ngā mea e tirohia ana e tō mātou tīma QC me ngā kaitirotiro o ā mātou kiritaki — me ngā mea e taunaki ana ahau kia tirohia e koe i tō arotake tauira e whai ake nei:

• Te kino o te miro whakawhiti: Ka puta ina kore e ōrite ngā miro tāne me te miro uwha i mua i te whakakīkī. Ka kitea te rerekētanga o ngā miro tuatahi e rua, e toru rānei. I runga i tētahi tauira, ka kitea tēnei he ahua taratara ina hurihia ā-ringa te hononga. Ka whakakorehia tēnei e mātou i roto i te hanga mā te whakapiko i te urunga miro tāne i te 30 nekehanga.
• Te whānui nui rawa: Kāore te tihi miro e neke ake i te rohe o runga o te awhi manawanui e uru ki te hononga. Ko te nuinga o tēnei ka puta i ngā tokotoko i hurihia ai ngā miro i muri i te paninga o te paninga parahi, ā, ka tāpirihia he matotoru ohorere ki te paninga. Ka whakahaerehia tēnei e mātou mā te aroturuki i te taumaha paninga mō ia wāhanga horahanga i mua i te taahiraa miro.
• Te whānui o te piko iti: He hononga koretake e taea ai te wiri o te hononga. Ahakoa he āhua watea i te wā e huihui ana, ko te tikanga o te miro koretake he iti ake te horahanga o te pa me te ātete hiko teitei ake i te hononga. Ka whakatakotoria e ā mātou kaihangarau ngā mate hurihuri kia aro ki waenganui o te awhi manawanui, kaua ki te rohe o raro.
• Ngā kōhao i runga i ngā pakiaka miro: Ngā kōhao koi i mahue i te taputapu tapahi mangu, i te mata hurihuri kua tawhito rānei. Ka taea e rātou te tapahi ki roto i te miro honohono i te wā e huihui ana, ā, ka hangaia he pūwāhi kukū ahotea e tere ake ai te ngenge i raro i te huringa wera auau. He whakamātautau tere mara e whakamahia ana e tā mātou tīma: whakahaerehia he kakahu miro i te taha o te miro - ki te mau ngā muka, kei reira ngā kōhao.
• Te whakakōpiripiri i ngā miro: He paninga parahi, he paninga konutea rānei e tihore ana i te tihi miro i te wā e hangaia ana. Mā tēnei ka kitea te maitai turanga ki te waikura, ka piki ake te ātete o ngā hononga i te roanga o te wā. Ka whakamātauhia e mātou te piri me te whakamahi i te tikanga piko-me-tihore i ia puranga.

Tauira Rārangi Arowhai Whakaae: Te Tikanga ā-Roto o tā Mātou Wheketere

Ina tono mai tētahi o ā mātou kiritaki i tētahi tauira o mua i te hanga o ā mātouNgā hononga tokotoko whenua miro 14.2mmi tētahi atu hua whenua miro rānei, ka whakahaerehia e mātou he rārangi arowhai tekau mā rua ngā tohu. Kei te tohaina e au te wāhanga miro-motuhake ki konei nā te mea koinei te wāhanga e pātaihia ana e te nuinga o ngā kaihoko:

1. Manatoko āhua miro: Whakaūtia te koki miro (60 nekehanga mō te UNC/UNF/ine, 55 nekehanga mō te BSP) mā te whakamahi i tētahi whakatairite whatu, i tētahi ine miro rānei.
2. Ine i te papa miro: Whakamahia he ine papa miro hei whakaū i te ōrite o te TPI, te mm rānei ki te whakatakotoranga. Mō te UNC 5/8″-11, me whakaatu e ia inihi o te roa o te miro he 11 ngā miro katoa.
3. Diameter matua: Inehia ki te maikiromita i ngā pūwāhi e rua, e 90 nekehanga te tawhiti. Me taka ngā pānui e rua ki roto i te awhe manawanui mō te akomanga kua tohua.
4. Diameter o te miro: Whakamahia he maikirīmita miro, he tikanga waea-toru rānei. Koinei te tohu tino tairongo mō te kounga o te miro.
5. Whakamātautau ine haere/kāore-haere: Me tika te haere o te ine haere; kaua te ine kore-haere e neke atu i te rua ngā hurihanga katoa. Ka hopukina e tēnei whakamātautau kotahi te nuinga o ngā take ā-ahu.
6. Whakamātautau taunga hononga: Huihuia ā-ringa te tokotoko tauira me te hononga taunga. Me tū te hononga ki te kaha e piri ana ki te maihao, kaua hoki e neke atu i te kotahi me te haurua ngā hurihanga me te kī.
7. Tirotiro tirohanga me te pā: Tirohia mēnā he pūwero, he hapa whakakikorua, me te taratara o te mata. Ka werohia e ā mātou kaitirotiro he maikuku ki te tihi o te miro — me maeneene, me ōrite hoki te āhua.
8. Whakamātautau taipana: Whakamahia te taipana huihuinga kua tohua (i roto i tā mātou mahi whakaputa, ka tohua e mātou te 40-60 Nm mō te hononga tokotoko whenua UNC 5/8″-11) me te whakaū i te mau o te hononga me te kore e tangohia.

I roto i tā mātou raina whakaputa, ka whakaahuahia e mātou ngā pānui ine mō ia puranga tauira, ā, ka tāpirihia ngā whakaahua ki te pūrongo tirotiro e tukuna tahitia ana me te tauira. Ko tēnei māramatanga tētahi o ngā take e haere tonu ai ā mātou kiritaki i roto i ngā rāngai waea me ngā ratonga ratonga ki te tohu i ā mātoungā tokotoko whenua wāhanga miro mō te hononga.

Ngā Whakaaro Rauemi: Te Pānga o te Mea Turanga ki te Mahi o te Miro

Ko te pono o te miro ko te rauemi anake e tapahia ai. Anei te whanonga o ngā rauemi rakau whenua e toru e whakamahia ana e mātou ki te miro:

Rino Parahi-Kākahu

Ko te nuinga o tā mātou rahinga ka uru kingā tokotoko whenua kua whakakikoruatia ki te parahi. Ko te paparanga parahi (ko te iti rawa ko te 0.254 mm, 0.508 mm rānei) e ātete ana ki te waikura me te kawe hiko, ko te matua rino ia e whakarato ana i te kaha pana. Ka mirohia e mātou ā mātou tokotoko i muri i te whakakikoruatanga mā te whakamahi i ngā mate hurihuri he pito carbide e kōpeke ana i te parahi, kaua e tapahia, kia mau tonu ai te paparanga. Ka tohutohu mātou ki ngā kaihoko kia tirohia kei te kitea te parahi, ā, kāore i whati i te tihi o te miro — ka waikura te rino tahanga, kua kitea tēnei i roto i ngā tirotirohanga mara i roto i te oneone i roto i ngā marama.

Rino Pirau-Tonu-Hot

Tō mātoungā tokotoko whenua wera-tukuwhakamahia heRākau whenua whakapūmau Q235hanganga. Ko te paninga konutea e rere ana i te 50-80 maikorone te iti rawa i runga i te ISO 1461, ka pania mā te tuku i te tokotoko kua oti ki roto i te konutea rewa. I roto i tā mātou mahi hanga, ka tapahia te miro i muri i te whakapūmau, ka whakaatuhia te maitai tahanga i te tihi. He pai tēnei mēnā he whakapūmau hoki te hononga, ā, kua hiritia te hononga. Ka tukuna atu hoki e mātoutokotoko whenua whakakoingā hua me ngā kōwhiringa miro kua whakapūmautia.

Kowiri tira

Mō ngā taiao waikura nui — ngā whakaurunga takutai, ngā tipu matū, te oneone rānei he nui te ihirangi pūhaumāota — ka tukuna e mātoungā tokotoko miro kowiri tirai ngā taumata 304 me te 316. Ka whakapakeke te kowiri tira Austenitic i te wā e hurihuri ana, ka taea te pana i te diameter pitch ki waho o te manawanui. Ka whakatikatikahia e tā mātou tīma hangarau mā te tukanga hurihuri e rua-haerenga me te ine i roto i te tukanga i waenga i ngā haerenga.

Ngā Aratohu Tāutanga Papa mō ngā Tokotoko Hononga Miro

Ahakoa he tokotoko miro tino tika, ka pakaru pea i te mara mena kāore te kaiwhakauru e whai i te tikanga tika. I runga i ngā urupare mai i ā mātou kiritaki me aku ake haerenga ki te papaanga, anei ngā mahi e hono ana ki te mahi pono mo te wā roa:

• Horoia ngā miro i mua i te huihuinga. Mā te paru, te kirikiri, me ngā para o te takai i roto i te miro ka kore e piri katoa, ā, ka kino pea te tihi o te miro. E toru tekau hēkona te roa o te whakamahi i te paraihe mārō me te horoi ki te kakahu ma, ā, ka kore e roa te wā e rapu raruraru ai.
• Whakahāngaitia i mua i te whakakī. Tīmatahia te hononga mā te ringaringa, hurihia te tokotoko ki te taha matau me te pēhanga mārie. Ki te kore te tokotoko e huri noa mō ngā hurihanga tuatahi e rua, ka hoki whakamuri tātou ka whakahāngai anō. Mā te akiaki i te miro kia hē te whakahāngai ka tangohia.
• Whakamahia he matū ārai-waikura ki ngā hononga parahi. Ka pania e mātou he paparanga angiangi o te whakapiri ārai-waikura hototahi ki te parahi ki runga i te miro i mua i te huihuinga hei whakakī i ngā āputa moroiti me te ārai i te urunga o te makuku e arahi ana ki te waikura konukōre i te hononga.
• Me whakamahi he hama pā, kaua he hama iti. Mā ngā whiunga maha o te hama iti ka puta he piko i te hononga ka pakaru te miro konukōre. Mā te hama taraiwa rakau whenua ka tukuna he kaha toki tika.
• Manatokohia te ātete whenua i muri i te tāutanga. Whakamahia he whakamātautau ātete whenua (tikanga hinga-o-te-pūmanawa mō iaIEEE 81) hei whakaū i te tutuki o te tokotoko kua tāutahia ki te ātete hoahoa. Mēnā ka piki ohorere te ātete ki te whakaritea ki te tokotoko kotahi-wāhanga, tera pea he hononga miro ngoikore.

I whakamahia e tā mātou kiritaki i te raki o Kanata te wāhangangā huinga tokotoko whenuame ngā hononga UNC kia eke ki te 18 mita i roto i te permafrost. Mā te whai i te kawa whakarārangi i runga ake nei, i honoa e te kapa, ā, i taraiwa i ngā wāhanga tekau mā rua 1.5-mita te roa, kāore he rahunga o te miro kotahi, ā, i paahitia e rātou te whakamātautau whakaae a te kamupene i te nganatanga tuatahi.

Te Tūranga o ngā Paerewa Miro i roto i te Whakatutukitanga Taumata-Pūnaha

Ki tā mātou titiro, kāore ngā pūnaha whenua e tū motuhake ana. He wāhanga rātou o te ao whānuite ārai uira me te whenua hikotāutanga me tutuki i ngā ture ā-motu me ngā ture ā-ao. Ahakoa te āhua iti noa iho o te paerewa miro i runga i tō hononga tokotoko whenua, e hono ana ki te anga ture whānui ake i roto i ngā huarahi e tirohia ana e ngā kaitātari me ngā kaitirotiro inihua:

• IEEE 80 (te whenua o te teihana hiko AC) — me haere tonu te hiko. Tērā pea ka puta he ātete i te hononga o waho e takahi ana i tēnei. Tohutoro:IEEE 80.
• UL 467 (Ngā taputapu whakapūmau me te here) — Ka whakamātauhia e te UL ngā irahiko whakapūmau mō te kaha ā-mīhini, te kawe hiko, me te ātete ki te waikura. Kāore e whiwhi rārangi te hononga e rahua ana i te whakamātautau UL 467. Tohutoro:UL.
• IEC 62561 (Ngā wāhanga pūnaha tiaki uira) — e kapi ana i ngā hononga, ngā kaiārahi, me ngā irahiko whenua. E aro ana te Wāhanga 7 ki te whenua. Me paahitia e ngā hononga miro ngā whakamātautau ā-pūkaha me te hiko o tēnei paerewa mō ngā tāutanga LPS.
• Ngā waehere hiko ā-motu (NEC, BS 7671, AS/NZS 3000) — ko te nuinga o ngā waehere e hiahia ana kia whakarārangihia ngā wāhanga whenua. Tērā pea ka rahua te tirotiro i te tāutanga mēnā kāore i te whakarārangihia te hononga.

I roto i aku mahi me ngā kiritaki o tāwāhi, kua āwhina ahau i ētahi i tiki mai i ngā tokotoko whenua mai i ngā kaiwhakarato kāore i manatoko i ngā paerewa miro, ā, i te wā o te arotakenga ka kitea kāore ngā hononga i tutuki i ngā whakaritenga. Ko te whakararuraru mai i te tirotiro anō me te hoko anō i nui atu i te wā e pau ana ki te manatoko i te manawanui miro i te wāhanga tauira. Nā te mea ka rere haere ngā hapa tutuki i roto i te kaupapa kaupapa, ko te whakatika i te miro i runga i te tauira tuatahi tētahi o ngā mahi tino whai hua ka taea e te miihini hoko te mahi.

Te Āwhina i ngā Kiritaki mā te Tukanga Whakaae Tauira

Ina tono koe i tētahi tauira mai i tā mātou whare hanga - ahakoa hetokotoko whenua maitai whakakikoruatia ki te parahi, he hononga konukōre, he rāneitokotoko miro kowiri tira— anei ā mātou e tuku atu nei:

• He pūrongo tirotiro ā-ahu me ngā inenga miro i mahia i ngā pūwāhi e toru i te roa o te hononga.
• Ngā whakaahua tata o te miro e hangaia ana i te whakanuinga 10x e whakaatu ana i te āhua o te tihi me te haere tonu o te whakakikorua.
• Ngā tiwhikete whakamātautau rauemi e whakaū ana i te taumata maitai turanga (te nuinga o te wā ko te Q235, te rite rānei mō ia GB/T 700), te momo paninga, me te matotoru o te paninga.
• He ataata whakamātautau taunga hononga e whakaatu ana i te huihuinga ā-ringa me te whakamahinga taipana ki te tauira tuturu.
• Mena e tika ana, ka taea e mātou te whakarite whakamātautau a te hunga tuatoru mā roto i ngā taiwhanga whaimana hei manatoko atu.

Kei roto i tā mātou taiwhanga QC ngā ine kua whakatauritea mō ngā momo miro UNC, UNF, BSP, me ngā miro ine. Kua whakangungua ā mātou kaitirotiro ki ngā paerewa ōrite ki ngā tikanga ine kua whakaahuatia i runga ake nei, ā, ka whakatauritea anō e mātou ā mātou ine i ia toru marama ki ngā paerewa matua e taea te whai atu kiNISTngā whare wānanga ine ine ā-motu rite rānei.

Mena kei te arotake koe i tētahi kaiwhakarato tokotoko whenua hou, mēnā rānei kua pāngia koe e ngā raruraru taunga miro me tētahi kaihoko o nāianei, ka akiaki ahau i a koe kia tīmata me tētahi tauira ota mai i tā mātouhononga tokotoko miroawhe. Ka whakaratohia e mātou te kete tirotiro katoa kia taea ai e koe te whakatau whakaae whai whakaaro i mua i te whakaae ki te utaina i tētahi ipu.

Ngā Pātai Auau: Ngā Rakau Whenua Hononga Miro