The defect in the knowledge bases of the traditional expert systems is briefly discussed and then an atmospheric corrosive knowledge base of carbon steel and low alloy steel based on artificial neural networks is presented.
简要介绍了传统专家系统知识库所存在的问题,提出了一个基于神经网络的碳钢和低合金钢大气腐蚀知识库系统,并着重阐述了这种新型知识库系统的知识获取、知识表示和系统的实现等问题。
Impact corrosion and abrasion properties of the low carbon alloy steel with different chromium con- tent under the simulated working condition of metallurgical industry were investigated by a MLD-10impact-corro- sion-abrasion tester.
在模拟工况条件下,对不同铬含量的新型衬板用低碳合金钢在腐蚀环境中的冲击磨损性能进行了测试,并利用扫描电镜和金相显微镜对试样的表面和亚表面形貌进行了观察。
The influences of chromium content on the hardness,impact toughness and corrosion resistance of low carbon alloy steel were studied using OM and hardness tester.
利用光镜、显微硬度计研究了铬含量对低碳合金钢组织、硬度、冲击韧度及耐均匀腐蚀性的影响。
The sub-temperature quenching process for the large low carbon alloy steel forging with different chemical composition has been described in this article,and the sub-temperature quenching process parameter which has been already applied in the practical production has been determined as well.
对不同成分的大型低碳合金钢锻件亚温淬火工艺进行研究,确定了亚温淬火工艺参数,并应用于实际生产中。
Preparation and microstructural characterization of hard bainite in surface layer of low-carbon alloy steel
低碳合金钢表面硬贝氏体的制备及其组织特征
Effect of hot rolling in dual-phase region on microstructue and mechanical properties of low-carbon alloy steel plate
两相区热轧对低碳合金钢板组织性能的影响
The product spectrum ranges from simple carbon steel and low-alloy steels to high-quality carbon steels.
产品种类范围从简单的碳钢和低合金钢到高质量的碳钢。
Establishment of an Atmospheric Corrosive Knowledge Base for Carbon Steel and Low Alloy Steel Based on ANN
用神经网络技术建造碳钢和低合金钢大气腐蚀知识库
Wwlding material: low carbon steel, high strength steel, medium carbon steel, low alloy steel.
可焊接材料：低碳钢、强度钢、碳钢、合金钢。
carbon and low-alloy steel vessels
碳钢及低合金钢容器
There are four broad classifications of steel: carbon steels, alloy steels, high-strength low-alloy steels and stainless steels.
钢材大致辞可分为四类，即：碳素钢、金钢、强度低合金钢和不锈钢。
Hot-rolled carbon and low alloy structural steel strips
GB/T3524-1992碳素结构钢和低合金结构钢热轧钢带
Weldable materials: low carbon steel , high-strength steel ,medium-carbon steel, low-alloy steel.
可焊材料：低碳钢、高强度钢、中碳钢，低合金钢。
We smell more than sixty kinds of steel here, such as low alloy steel, carbon structural steel and shipbuilding carbon steel.
这儿冶炼六十多种钢，如低合金钢、碳素结构钢和船用碳素钢等。
Carbon structural and low alloy steel--Rolled plates and strips
GB/T3274-1988碳素结构钢和低合金结构钢热轧厚钢板和钢带
Cold-rolled plain carbon and low alloy structural steel sheets and strips
GB/T11253-1989碳素结构钢和低合金结构钢冷轧薄钢板及钢带
Hot-rolled plain carbon and low alloy structural steel sheets and strips
GB/T912-1989碳素结构钢和低合金结构钢热轧薄钢板及钢带
Method of fracture test for carbon and low alloy steels
GB/T2971-1982碳素钢和低合金钢断口检验方法
according to the amount of alloy elements (except carbon), alloy steels can be divided into low-alloy steel, medium-alloy steel and high-alloy steel.
根据除碳以外的合金元素的含量，合金钢可以再分为低合金钢、中合金钢和高合金钢。
Standard body/ bonnet materials include nine grades of carbon, low alloy and stainless steels.
标准阀体/盖材料包括9个等级的碳钢，低合金钢和不锈钢。
Hot-rolled long products technical requirements for carbon structure steel and low-alloy structure steel
GB/T14292-1993碳素结构钢和低合金结构钢热轧条钢技术条件
Steel--Conversion of elongation values--Part 1: Carbon and low alloy steels
GB/T17600.1-1998钢的伸长率换算第1部分:碳素钢和低合金钢
Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steels.
标准阀体/阀盖材料包括9个等级的碳钢，低合金钢和不锈钢。
Present Development Status of Carbon Steel,Low Alloying Steel Castings in Investment Casting at Home;
我国碳钢、低合金钢精铸业发展现状
