The article analyzes the features of the structure formation, as well as physical, mechanical, and antifriction properties of the new composite material based on grinding wastes of aluminum alloy AD35 intended for operation with liquid lubricant in the air at loads of up to 4.0 MPa and sliding speeds of up to 2.0 m/sec. The results showed that the application of the developed technology for recycling grinding wastes of aluminum alloy AD35 allowed obtaining a composite antifriction material of a homogeneous structure without liquation phenomena. By its physical and mechanical properties, new composite material does not concede to foreign cast alloy AlSi1MgMn but significantly exceeds it by tribological characteristics in similar operating conditions. Studies have shown that utilizing the grinding wastes of AD35 alloy for the production of new antifriction materials on their basis is an important technological method for the efficient recycling of such a valuable source of high-alloy raw materials. For the new antifriction composite material obtained from high-alloy grinding wastes of aluminum alloy AD35, the rational operating ranges were determined, namely, a sliding speed was up to 2.0 m/sec and a load was up to 4.0 MPa with a counterface from steel 45 (45−48 HRC) at operating in the air under lubrication conditions with PEF-240 synthetic oil. The new composite antifriction material can be used in contact joints of folding machines, die-cutting machines, envelope making equipment, and other post-printing machines as an alternative to currently used foreign cast analogues. It was shown the prospect of using reclaimed industrial grinding wastes of aluminum alloys as a basis for obtaining antifriction composite materials for a different operating mode under conditions, when the structure and properties can be controlled by technological methods choosing the chemical composition of grinding wastes and applying the rational manufacturing technological parameters.

中文翻译：

---

基于铝合金废料的复合减摩材料用于印后设备项目

文章以铝合金AD35磨削废料为基础，分析了新型复合材料的结构形成特征，以及用于在空气中在高达4.0 MPa的载荷下使用液体润滑剂操作的复合材料的物理、机械和减摩性能。滑动速度高达 2.0 m/sec。结果表明，应用开发的AD35铝合金磨削废料回收技术，可以获得结构均匀、无液化现象的复合减摩材料。就其物理和机械性能而言，新型复合材料不逊于外国铸造合金 AlSi1MgMn，但在类似操作条件下的摩擦学特性显着超过它。研究表明，利用AD35合金的磨削废料在其基础上生产新型减摩材料是有效回收这种宝贵的高合金原材料的重要技术手段。对以铝合金AD35高合金磨削废料为原料获得的新型减摩复合材料，确定了合理的操作范围，即滑动速度可达2.0 m/sec，载荷可达4.0 MPa，与钢对接面在使用 PEF-240 合成油的润滑条件下在空气中运行时为 45 (45-48 HRC)。这种新型复合减摩材料可用于折页机、模切机、信封制造设备和其他印刷机的接触接头，作为目前使用的国外铸件的替代品。