| 1. | Technical conditions for lining board of high chromium cast irons
高铬铸铁衬板技术条件 |
| 2. | The effect of solidification rate on eutectic microstructure of high chromium cast iron
凝固速度对高铬铸铁共晶组织的影响 |
| 3. | Reserarch on high chromium cast iron material quality of the cushion plate of d - 10d double - inlet amp; double - outlet coal mill
双进双出磨煤机衬板高铬铸铁材质的研究 |
| 4. | High chromium cast iron has higher erosion resistance at lower impact angle , while the erosion resistance is worse for the lower toughness at normal impact
高铬铸铁在低角冲蚀时有较高的耐冲蚀性，但高角冲蚀时由于脆性大，易崩裂。 |
| 5. | 28cr high chromium cast iron is one of primary wear resistance materials , which is in use at present . it shows superior performance in corrosion wear and abrasive wear
28cr高铬铸铁是目前使用的主要的抗磨材料之一，在抵抗腐蚀磨损和磨料磨损中表现出优越的性能。 |
| 6. | The erosive wear behaviors of five engineering materials , include a3 steel , 1crl8ni9ti stainless steel , high chromium cast iron , ptfe and corundum , were studied by an air blast tester under ambient
采用气流喷砂型实验装置测试了a _ 3钢、 1cr18ni9ti不锈钢、高铬铸铁、聚四氟乙烯和刚玉五种工程材料的耐冲蚀性能。 |
| 7. | The results show that the composites were more wear resistant than the matrix , contributing to the " volume effect " and " size effect " , the wear resistance increases with the particle content and size . the composite shows better wear resistance than high chromium cast iron material especially in low load and fine abrasive test condition . the results also indicate that the composite strengthened by ageing treatment was more wear resistant than as - cast composite
磨损试验结果表明，铸造碳化钨颗粒增强cu - ni - mn合金基复合材料具有比较高的抗磨料磨损能力，而且其耐磨性随着铸造碳化钨颗粒体积分数及尺寸的增大而提高，表现出了强烈的“体积效应”及“尺寸效应” ，尤其是在低载荷、细磨料磨损条件下，复合材料表现出更好的而寸磨性，即使与高铬铸铁( cr28 )相比也有很大程度的提高。 |
| 8. | The particles distributed hi the matrix of grey cast iron , but some contact each other . the composite layer extend gradually into the substrate . when volume fraction of wc is 36 wt % and 27 wt % , the matrix of the composite is high chromium cast iron , consist of white carbide bars and the austenite . wc particles distributed uniformly , retaining approximately quondam granular form in the composite layer which has an evident interface area with the substrate , with good bonding strength
对不同碳化钨体积分数的灰铁和低铬铸铁基复合材料的微观组织结构分析表明：碳化钨体积分数为52时，复合层内基体为灰口铸铁组织，颗粒直接分布在灰铁基体上，部分碳化钨颗粒有相互接触的现象，基材与复合层之间没有明显的过渡；碳化钨体积分数为36 、 27时，复合层内基体为高铬铸铁，由面块状的奥氏体和白条状碳化物组成，碳化钨颗粒表面固溶于基体组织中，粒形基本保持完整，分布均匀，与基体构成冶金结合，基材与复合层之间存在一个明显的平缓过渡区。 |
| 9. | The effect of compound casting technology and compound modification on the properties of high speed steel roll collar was studied . the results showed that compound high speed steel roll collar with high and even hardness and good bond between outer and inner layers could be gained when the modified colbalt free high speed steel in outer layer and nodular iron inner layer in connection with appropriate rotational speed of centrifugal machine , pertinent pouring interval between two kinds of the melt and moderate pouring temperature as well as surface induction heat treatment were chosen . it is indicated in industrial use that the service life of compound roll collar is higher by 5 times than that of high chromium cast iron collar
研究了离心复合铸造工艺和复合变质处理对高速钢辊环性能的影响，结果表明，选用变质高碳无钴高速钢作外层，用球铁作内层，选择合适的离心机转速、两种金属熔液浇注间隔时间和浇注温度，结合采用表面感应热处理工艺，可获得硬度高、均匀性好、内外层结合良好的高速钢复合辊环，用于工业生产其使用寿命比高铬铸铁辊环提高5倍以上。 |
