On the basis of analysis of the measuring results , the reasonable preheating operation regulations are carried out 結(jié)合測(cè)量結(jié)果分析了鑄坯加熱過(guò)程的溫度制度和供熱制度,提出了加熱爐合理的熱工制度,并應(yīng)用于實(shí)際生?之中。
In order to get the high - qualitied ingot and stabilize the production during the cc process , we must find the suitable controlling parameters to control it 在鋼鐵連鑄生產(chǎn)過(guò)程中,保證質(zhì)量及生產(chǎn)穩(wěn)定性的關(guān)鍵在于選擇合適的工藝參數(shù)以控制鑄坯的凝固過(guò)程。
The paper put forward a new model and tendency of rolling plate which adopt the medium thickness casting billet and the modern steckel mill 進(jìn)而指出,中等厚度的連鑄坯與現(xiàn)代爐卷軋機(jī)組合的成卷軋制中厚板的生產(chǎn)模式,是今后中厚板生產(chǎn)發(fā)展的一種新模式和方向。
By the industrial experiment , the distribution of continuous casting billet preheating temperature is measured , and the economic load range of reheating furnace is established 摘要在工業(yè)生?條件下測(cè)量了鑄坯加熱溫度分布,工業(yè)試驗(yàn)確定了加熱爐經(jīng)濟(jì)負(fù)荷運(yùn)行區(qū)。
A new processing technique for seamless tubes manufacture of stainless steel is introduced in the present work , in which die cast hollow blank is directly used for a hot extrusion 摘要介紹了一種短流程無(wú)縫不銹鋼管材的制備工藝,即用空心鑄坯直接熱擠壓制備荒管。
The results show that temperature gradient on the front edge of solidified shell in combined mold can be reduced and the proportion of equiaxial crystal of billet is more than 80 % 結(jié)果表明:復(fù)式結(jié)晶器能夠降低鋼液凝固前沿的溫度梯度,從而使鑄坯的等軸晶率超過(guò)80 % 。
The present paper reviews the current status and technical development ofr continuous caster productivity , improvement of product cleanliness and surface and internal quality of casting strand 綜述了提高連鑄機(jī)生產(chǎn)率、鑄坯潔凈度及鑄坯表面和內(nèi)部質(zhì)量等方面所采用的技術(shù)措施。
In this paper , the internal transverse cracks of continuous casting slabs of a niobium - bearing peritectic grade of steel are investigated using electron probe microanalyser and optical microscope 摘要連鑄坯厚度中心存在的內(nèi)裂紋在后續(xù)的軋制過(guò)程中軋不合而對(duì)產(chǎn)品的質(zhì)量帶來(lái)重大的影響。
As the melt speed of sic in steel water is very slow and sic has the function of restrain the melting of free carbon in steel water , so the contain of carbon in steel is decreased 由于碳化硅中的碳熔解到鋼水中去的速度極小,而且有抑制游離碳熔解到鋼水中去的作用,因此減少了鋼鑄坯碳增量。
The object of my research work is to build a complete mathematical model for the secondary cooling process during cc process , and identify the unknown controlling parameters in it 本項(xiàng)研究工作的目標(biāo)是建立完整的連鑄二冷過(guò)程的傳熱數(shù)學(xué)模型以及利用鑄坯的表面溫度來(lái)辨識(shí)出二冷段一些噴淋工藝參數(shù)。