铸钢

Iron Casting Boiler, Steel Boiler, Wall Hung Boiler

services 销售进口自欧洲的各种锅炉，比如铁铸锅炉、钢锅炉

The new heat treatment process of isothermal spheroidize→preheat fully→quenching→tempering was tested.

由于Cr12钢铸态时存在鱼骨状共晶碳化物，这种状态随着钢锭凝固速度的减慢和锭型尺寸的增大而加剧，虽然在锻轧过程中共晶碳化物被破碎，但钢中还是存在碳化物分布不均匀或纤维方向性的现象，导致钢材的各向异性。

Compared with conventional quenched and tempered process, Direct quenching eliminated off-line reheating and quenching, reduced processing costs and shortened process, in addition, DQ process increase hardenability ,weldability, and mechanical balance by reducing alloy elements.

本文以工业生产的转炉连铸22SiMn2TiB钢为研究对象，以实验室热轧实验为主要研究手段，对直接淬火工艺在不同轧制条件下对钢板微观组织与力学性能的影响进行了研究，同时与再加热淬火工艺进行了比较，探讨了此类钢在低温回火下提高强韧性的可能性和直接淬火工艺的机理。

The paper has studied systematically fluid flow behaviors in argon blowing process in ladle furnace and told more suitable position and quantity for blowing argon by means of water model and mathematical simulation, according to the Ladle Furnace of Shi Jiazhuang Iron and Steel Corporation. And it optimized the ladle construction and fluid flow behaviors, so it provided the molten steel with perfect temperature and composition.

本文针对石家庄钢铁有限公司LF-钢包精炼炉，利用水模型和数学模型模拟，系统研究了LF吹氩过程中钢液的流动行为，确定了最佳的钢包吹氩位置以及适宜的吹氩气量，改善了钢包结构，优化了钢液流动状态，为连铸工序提供具有理想温度和成分的钢水奠定了技术基础。

According to the limit condition for avoiding the formation of subsurface blowholes.

从避免产生皮下气泡的极限条件出发，定量分析了国外连铸&缎带钢&专利控制低碳低硅成份的理论根据，分析了钢中残铝量的作用以及降低用铝量的可能限度与前提条件。

Using ductile cast iron as materials of roller beds of plate mill to substitute the 45# forged steel can meet the requirements of production process. It can avoid the similar surface defects of 45# forged steel and decrease the production cost considerably.

采用球墨铸铁来取代锻钢作为中板轧机前后辊道材质，可满足生产工艺要求，并可解决轧机前后因使用45锻钢辊而造成的钢材或铸坯的表面缺陷，大幅度降低生产成本。

Casting a blank on a number of ways such as the widening of steel, pushing steel machine, transferring vehicles, lifting hook contrast, the final choice of transferring to this car as a blank device.

在对连铸出坯的几种方式如拉钢机、推钢机、横移台车、起重吊钩的对比后，最终确定选用横移台车作为此出坯装置。

Several heats of API X70 for arctic application were cast and rolled on this flexible thin slab casting rolling line and it was confirmed that the thin slab casting technology is particularly suitable for producing hot rolled coils of HSLA steels,even for applications in severe environmental conditions,achieving all characteristics above standards.

用这套灵活的薄板坯轧制设备生产在北极高寒地区使用的PAIX70管线钢，几炉钢水的试浇试轧结果已经证明，达涅利薄板坯连铸技术特别适合生产高强度低合金钢热轧带卷，即便是用于极为严酷的使用环境，其各项性能指标仍可超过标准规定的质量要求。关键词薄板坯； HSLA； API X70；管线钢；北极地区应用

The hardness, red-hardness and bend strength of rolled M2 cast-strip are all higher than that those of conventional M2 thin strip.

由铸带热轧而成的高速钢薄带的淬回火硬度、红硬性和抗弯强度均高于常规工艺生产的高速钢薄带。

Scanning electron microscope analysis showed that there are more elements enrichments in the crack position, which are O, Ca, Mg, Na and Cu etc. The carbon content of molten, casting process, heating time and so on are main reasons which result in the cracks.

扫描电镜分析表明，高强钢裂纹处存在较多的O、Ca、Mg、Na、Cu等元素，钢水碳含量、连铸工序、加热时间等是高强钢产生裂纹的主要原因。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。