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Gyara nakasar walda

Babban abubuwan da ke cikin tsarin karfe sune ginshiƙan ƙarfe na ƙarfe na H mai siffa, katako da katako.Nakasar walda takan yi amfani da hanyoyin gyaran harshen wuta guda uku masu zuwa: (1) Hanyar dumama madaidaiciya;(2) Hanyar dumama tabo;(3) Hanyar dumama alwatika.

1. Gyara zafin jiki

Mai zuwa shine zafin jiki na dumama yayin gyaran harshen wuta (wanda aka yi da karfe mai laushi)

Gyaran ƙananan zafin jiki 500 ~ 600 digiri Hanyar sanyaya: ruwa

Matsakaici zazzabi gyara 600 digiri ~ 700 digiri Hanyar sanyaya: iska da ruwa

Babban zafin jiki gyare-gyare 700 digiri ~ 800 digiri Hanyar sanyaya: iska

Tsare-tsare: zafin zafin jiki bai kamata ya yi yawa ba lokacin da gyaran harshen wuta ya yi yawa, kuma tsayin daka zai sa karfe ya zama tsinke kuma yana shafar tasirin tasirin.16Mn ba za a iya sanyaya shi da ruwa ba yayin gyaran yanayin zafi mai zafi, gami da karafa masu girman kauri ko halaye masu tauri.

2. Hanyar gyarawa

2.1 Nakasar kusurwa ta farantin flange

Gyara nakasar ginshiƙan ƙarfe na H-dimbin yawa, katako da kusurwoyi masu goyan baya.A kan farantin flange (a waje da alignment weld) dumama madaidaiciya madaidaiciya (ana sarrafa zafin jiki mai zafi a ƙasa da digiri 650), kula da kewayon dumama bai wuce kewayon da ƙafafun walda biyu ke sarrafawa ba, don haka kar a yi amfani da sanyaya ruwa.Lokacin dumama a layi, kula da: (1) bai kamata a maimaita zafi a wuri ɗaya ba;(2) Kada a sha ruwa yayin dumama.

2.2 Babban baka da ƙananan karkacewa da lanƙwasawa

(1) A kan farantin flange, yana fuskantar walƙiya mai tsayi, daga tsakiya zuwa ƙarshen biyu na dumama madaidaiciya, zaku iya gyara nakasar lankwasawa.Don guje wa lankwasawa da nakasar, ana aiwatar da bel ɗin dumama guda biyu lokaci guda.Ana iya amfani da gyaran ƙananan zafin jiki ko matsakaicin zafin jiki.Wannan hanya tana da amfani don rage damuwa a cikin walda, amma wannan hanya tana da babban raguwa na gefe a lokaci guda tare da raguwa na tsayi, wanda ya fi wuyar ganewa.

(2) Dumama linzamin kwamfuta akan farantin flange da dumama triangular akan yanar gizo.Yi amfani da wannan hanyar don gyara lanƙwasawa na ginshiƙai, katako, takalmin gyaran kafa, tasirin yana da ban mamaki, ana ɗaukar nisa na madaidaiciyar madaidaiciyar dumama gabaɗaya 20-90mm, kauri farantin sa'a ɗaya ne, nisa ɗin dumama yakamata ya zama kunkuntar, kuma tsarin dumama ya kamata. a fadada daga tsakiyar nisa zuwa bangarorin biyu.Tsarin dumama layin yana da kyau ta hanyar mutane biyu a lokaci guda, sannan zafi nisa triangle triangle bai kamata ya wuce 2 kauri na farantin ba, kuma kasan triangle daidai yake da nisa na dumama madaidaiciya na reshe mai dacewa. farantin karfe.The dumama triangle farawa daga sama sa'an nan kuma fadada daga tsakiya zuwa gefe, dumama Layer da Layer har zuwa kasan triangle.Yanayin zafin jiki bai kamata ya yi yawa ba lokacin dumama yanar gizo, in ba haka ba zai haifar da nakasar baƙin ciki kuma yana da wahalar gyarawa.

Lura: Hanyar dumama alwatikawan da ke sama shima yana aiki da gyaran gefen lanƙwasa na ɓangaren.Lokacin dumama, ya kamata a yi amfani da gyaran gyare-gyare na matsakaici, kuma watering ya zama ƙasa.

(3) Lalacewar ginshiƙai, katako da gidajen yanar gizo masu goyan baya

Don gyara gurɓacewar igiyar ruwa, dole ne mu fara nemo kololuwar da aka ɗaga sama kuma mu yi amfani da hanyar dumama ɗigo tare da guduma na hannu don gyarawa.Diamita na digon dumama gabaɗaya 50 ~ 90mm, lokacin da kauri na farantin karfe ko wurin wavy ya girma, diamita kuma yakamata a ƙara girma, wanda za'a iya danna d = (4δ + 10) mm (d shine diamita. na wurin dumama; δ shine kauri farantin) ana ƙididdige ƙimar dumama.Gilashin yana motsawa a cikin karkace daga kololuwar igiyar kuma ana gyara shi a matsakaicin zafin jiki.Lokacin da zafin jiki ya kai digiri 600 zuwa 700, ana sanya guduma a gefen yankin dumama, sa'an nan kuma a yi amfani da guduma don buga guduma, ta yadda karfen da ke cikin yankin dumama ya matse, kuma kwantar da hankali ya kwanta.Ya kamata a guji yawan damuwa yayin gyarawa.Bayan gyara ɗigo ɗaya, za a yi zafi na ɗigo na biyu, kamar yadda yake sama.Don haɓaka ƙimar sanyaya, ƙarfe Q235 na iya zama sanyaya ruwa.Wannan hanyar gyara ta hanyar hanyar dumama ɗigo ce, kuma rarraba wuraren dumama na iya zama ɗigo masu yawa masu siffar plum ko nau'in sarkar.Yi hankali kada ku wuce digiri 750.

rarraba

Hanyoyin gyaran gyare-gyare na fillet welds

Fillet waldi

Sashe na 5.23 na bugu na 2015 na AWS D1.1 yana ma'amala da tanadin abubuwan da suka dace da bayanan walda waɗanda ba a yarda da su ba.Lokacin da girman weld ɗin fillet ya yi girma saboda sakaci, za a yi kuskuren fahimtar tanadin bayanin martabar walda da aka jera a Sashe na 5.23.Dangane da tsarin ƙirar ƙarfe na Amurka, yana ɗaukar nauyin weely weel bai tsoma baki ba, yana iya haifar da fillet ɗin fillet ɗin, yana iya haifar da ɓangaren fillet, yana iya haifar da ɓangaren fillet ɗin, yana iya haifar da ɓangaren fillet ɗin, yana iya haifar da ɓangaren fillet welet (ko a gefe ɗaya ko biyu gefen ) da girmansa.Ƙoƙarin cire ƙurar walda da suka wuce gona da iri da aka kwatanta a sama na iya haifar da raguwa, lalacewa da/ko fashe walda.Gudanar da sifar fillet ɗin waldi zai bi ka'idodin da suka dace da aka tsara a cikin Sashe na 5.23.1 na 2015 edition na AWS D1.1.

Menene sharuɗɗan haɗuwa don kafa haɗin gwiwa na kusurwa?Sashe na 5.22.1 na bugu na 2015 na AWS D1.1 ya bayyana cewa izinin tushen tushen ba zai iya wuce 1.59mm (1/16 in.) ba tare da gyara ba.Gabaɗaya, idan girman walda ya ƙaru tare da haɓakar sararin tushen ko kuma idan an tabbatar da samun ingantacciyar kusurwar concave da ake buƙata, ana la'akarin halal ɗin tushen ba zai wuce 4.76mm (3/16 in.).Don kauri da ya wuce ko daidai da 76.2mm (3 in.) Don faranti na ƙarfe, ƙimar izinin tushen tushe shine 7.94mm (5/16 in.) lokacin amfani da pads masu dacewa.


Lokacin aikawa: Juni-06-2022