加强技术标准的宣贯和发行工作。制定技术标准的目的在于运用。只有技术标准得到运用，才能发挥作用，取得效益。而技术标准的发行和宣贯工作，是技术标准运用工作的重要环节，做好技术标准的发行工作十分重要。TostrengthenthetechnicalXuanguananddistributionwork.Thepureofformulatingtechnicalistouseit.Onlywiththeapplicationoftechnicalcantheeffectbeplayedandthebenefitisachieved.Thetechnicalissueandpublicizingthework,isanimportantpartoftheuseoftechnical,goodtechnicalissueisveryimportant.加热炉的分类:1.有纯加热炉，如常压炉、减压炉等；有加热炉反应炉，如裂解炉、焦化炉等。2.按传热方式分类：有纯对流式炉、辐射对流式炉和辐射式炉。Theclassificationoftheheatingfurnace:1.therearepureheatingfurnaces,suchasctantpressurefurnace,pressurereducingfurnace,andsoon;therearereheatingfurnacereactionfurnaces,suchascrackingfurnaceandcokingfurnace.2.classifiedaccordingtotheheattransfermode:therearepureconvectionfurnace,radiantconvectivefurnaceandradiantfurnace.用于加热小断面料坯的炉子只有预热段和加热段。习惯上还按炉内安装烧嘴的供热带划分炉段，依供热带的数目把炉子称为一段式、二段式，以至五段式、六段式等。50～60年代，由于轧机能力加大，而推钢式炉的长度受到推钢长度的限制不能太长。Thefurnaceusedforheating***allbrokenfabricbilletisonlypreheatingsectionandheatingsection.Itiscustomarytodividethefurnacesectionaccordingtotheheatingbeltwiththeburnerinthefurnace.Accordingtothenumberoftropics,thefurnaceiscalledtheonesection,thetwosection,andthefivesectionandthesixsection.Inthe50~60era,duetotheincreaseofrollingmillcapacity,thelengthofpusherfurnacemustnotbetoolongduetothelengthofsteelpushing.转底式加热炉炉身固定，炉底转动，放置在炉底上的料坯随炉底转动由进料口移送到出料口。根据炉底的形状，转底式加热炉可分为环形炉和盘形炉两种，冶金厂轧钢车间多用环形炉。BottomreheatingfurnaceThefurnacebodyisfixedandthebottomofthefurnaceisrotated,andthebilletplacedonthebottomofthefurnaceistransferredtothedischargeportfromthefeedinletwiththerotationofthefurnacebottom.Accordingtotheshapeofthefurnacebottom,therotaryhearthfurnacecanbedividedintotwotypes:theannularfurnaceandthedisctypefurnace.)