Wahala da mafita don yankan faranti mai kauri

Akwai matsalolin fasaha masu zuwa a cikin kasancewar karfe yankan laser injinan yankan faranti masu kauri:

1. Tsarin kone-kone-daidaitacce-jihar yana da wahalar kiyayewa. 

A cikin ainihin tsarin yankan karfe Laser sabon inji, kauri daga cikin cuttable farantin yana da iyaka, wanda ke da alaƙa da rashin iyawar ƙarfe na gaba don ƙonewa. Dole ne tsarin konewa ya kasance mai ci gaba kuma zafin jiki a saman tsaga dole ne ya isa wurin kunnawa. Ƙarfin da aka fitar ta hanyar ferrooxidation dauki kadai baya tabbatar da cewa tsarin konewa ya ci gaba.

A gefe guda, saboda tsaga yana ci gaba da sanyaya ta hanyar iskar oxygen da ke gudana daga bututun ƙarfe, ana saukar da zafin jiki na gaba: a gefe guda, ferrous oxide Layer da aka kafa ta hanyar konewa yana rufe saman kayan aikin, yana hanawa. yaduwar iskar oxygen, kuma yana rage yawan iskar oxygen.

A wani matakin, tsarin konewa zai fita. Lokacin yankan Laser tare da katako mai haɗawa na al'ada, yanki na katakon Laser da ke aiki a saman yana ƙarami. Saboda da high Laser ikon yawa, da surface zafin jiki na workpiece kai ga ƙonewa batu ba kawai a cikin yankin na Laser radiation, amma kuma saboda zafi conduction. Wurin ya kai ga zafin wuta. 

Diamita na kwararar iskar oxygen a saman kayan aikin ya fi girma fiye da diamita na katako na Laser. Wannan yana nuni da cewa ba wai kawai wani tashin hankali mai ƙarfi yakan faru a yankin hasken wuta na Laser ba, amma kuma konewa yana faruwa a lokaci guda a kusa da wurin da katakon Laser ya haskaka.

Lokacin da slab aka yanke, da yankan gudun ne quite jinkirin, da kuma surface na workpiece aka ƙone a cikin sauri kudi fiye da yankan shugaban. Bayan ƙonawa na ɗan lokaci, tsarin konewa yana kashewa saboda raguwar ƙwayar iskar oxygen. Sai kawai lokacin da yanke kan ya yi tafiya zuwa wannan matsayi, ƙwayar konewa ta sake farawa. 

Ana aiwatar da tsarin konewa a gaban yanke lokaci-lokaci, wanda ke haifar da canjin zafin jiki a gaban yanke da ƙarancin yanke.

2. Yana da wuya a kula da tsaftataccen iskar oxygen da matsa lamba a cikin kauri shugabanci. 

Lokacin da na'urar yankan Laser ta ƙarfe ta yanke cikin faranti mai kauri, raguwar tsabtar iskar oxygen kuma muhimmin abu ne da ke shafar ingancin incision. Tsabtace rafin oxygen yana da tasiri mai karfi akan tsarin yanke. Lokacin da tsabtar rafin oxygen ya ragu da kashi 0.9%, yawan ƙonewar ferrite zai ragu da 10%; lokacin da tsarki ya ragu da 5%, yawan kuna zai ragu da 37%.

Rage yawan ƙonawa zai rage yawan shigar da makamashi a cikin tsaga yayin aiwatar da konewa, rage saurin yankewa, da haɓaka abun ciki na baƙin ƙarfe a cikin ɗigon ruwa na yanki na yankan, ta haka zai ƙara danko na slag, wanda ya haifar da shi. wahala wajen fitar da slag. Ƙunƙarar slag zai bayyana a cikin ƙananan ɓangaren, yana sa ingancin ƙaddamarwa ba shi da karɓa. Domin kiyaye yankan kwanciyar hankali, ana buƙatar cewa tsabta da matsa lamba na kwararar iskar oxygen da aka yanke a cikin kauri mai kauri ana kiyaye su sosai. A cikin tsarin yankan Laser na al'ada, ana amfani da bututun ƙarfe na yau da kullun, wanda zai iya saduwa da buƙatun amfani a yankan farantin bakin ciki.

Koyaya, lokacin yankan faranti mai kauri, yayin da matsin lamba ya karu, raƙuman girgiza suna samun sauƙi a cikin filin kwarara na bututun ƙarfe. Gudun girgiza yana da haɗari da yawa ga tsarin yanke, yana rage tsabtar iskar oxygen kuma yana rinjayar ingancin ƙaddamarwa.

Gabaɗaya akwai hanyoyi guda uku don magance wannan matsalar:

• (1) ƙara harshen wuta mai zafi a kusa da yankan rafin oxygen;
• (2) ƙara ƙarin kwararar iskar oxygen a kusa da yankan rafin oxygen;
• (3) Haƙiƙa zana bangon ciki na bututun ƙarfe don inganta halayen filin iska.

Shiga wannan labarin ： Wahala da mafita ga Laser sabon lokacin farin ciki faranti karfe

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