The result of ammonia nitrogen blow-off experiment showed that under the condition of water temperature 20.6 ℃, pH value 10.8, and the blowing period 4h, the ammonia nitrogen removal efficiency was 80.8%.

A model of optimized dephosphorization in the primary blowing period for top-blown oxygen converter

氧气转炉吹炼前期的最佳化脱磷工艺基础

The kernel of the converter blowing procedure control is the blowing endpoint control model which is made up of three submodels.

转炉炼钢过程控制的核心是吹炼终点控制模型，该模型又由三个子模型组成。

It is an important method for science production organization of steelmaking, which control converter blowing process by computer.

用计算机控制转炉冶炼过程，是科学的组织炼钢生产的重要手段。

The design and implementation of resc, a real time expert system for converter blowing control

转炉吹炼实时控制专家系统RESC的设计与实现

For high efficiency BOF, one converter blowing system, capacity is 190~ 280 t;

对于高效转炉，采用一座转炉吹炼制，其容量范围为190～280t。

The full automatic control technique for converter blowing process

转炉全自动吹炼技术

Discussion on Converter Blowing System in Guixi Smelter

贵冶转炉吹炼制度探讨

Implementing the converter blowing control with an object-oriented programming method

用面向对象的方法实现转炉吹炼控制模型

Due to the special structure and strict technical requirements of the front shock absorber sleeve of motorcycle, which leads to casting defects, such as shrinkage porosity, surface blowhole, are very easy to occur in production.

铝合金摩托车液压式前减震器筒体特殊的结构、严格的技术要求，导致生产中铸件很容易出现缩松、皮下气孔等缺陷。

Discussing various influence factors of ductile iron's surface blowhole defects indicates that bringing various gases in the molten metal or on the interface with the sand mould is inevitable.

对影响球墨铸铁件皮下气孔的各种因素分析表明，铁液中气体的产生有其必然性，通过减少气体的发生量以防止皮下气孔的方法并不是都能奏效。

No surface blowhole formed in cast pipe when the amount of gas evolution from the coating of pipe model for water-cooled centrifugal cast was less than 5.5mL/g.

当水冷法管模涂料发气量≤55mL/g时，铸管表面不产生气孔缺陷。

Study on Making Use of Graphitizing Expansion to Eliminate Surface Blowhole of Ductile Cast Iron

利用石墨化膨胀消除球铁皮下气孔的研究

Study of Influence Factors on Surface Blowhole in Ductile Iron Casting

球铁件皮下气孔影响因素的研究

The test shows that no surface blowhole formed when the amount of gas evolution was less than 5ml/ g.

试验表明，只要涂料发气量小于5ml/g，铸管不会产生表面气孔。

The reservoir space has the multi-origins, by primary blowhole and secondary corrosion hole primarily.

储集空间具有多成因性，以原生气孔和次生溶蚀孔为主。

The effect of alloy composition and original gas content on secondary blowhole is also studied. The Blowhole and Quality of Castings

研究合金成份和原始含气量对生成二次气孔的影响。铸件型腔气体和铸件品质

Main Elements of Secondary Blowhole in Silicon and Aluminum Alloy

影响铝硅合金中二次气孔的主要因素

The morphology and formation reason of the slag blowhole, judgement and prevention measures of the defect were described.

阐述渣气孔的分布和形态、渣气孔的成因、缺陷判断和防止措施。

Casting Technique of the Aluminum Alloy Right Box and Prevention of Slag Blowhole Defects

铝合金右箱体铸造工艺及渣气孔缺陷防止

Features and operation of steam turbine for driving blower of a 330 kt/ asulphur-burning sulphuric acid plant

330kt/a硫磺制酸装置风机驱动汽轮机的特点及运用