Page 84 - 《橡塑技术与装备》2025年4期

橡塑技术与装备
HINA R&P TECHNOLOGY AND EQUIPMENT

Process method for machining rotors based on MAZAK E670H
turning milling composite machining

Chen Jian
(Yiyang Rubber & Plastics Machinery Group Co. LTD., Yiyang 413000, Hunan, China)
Abstract: In the traditional internal mixing machine rotor machining process, multiple processes such as
dispersion, turning, milling, drilling, and marking are usually required. Due to the processing material being
high hardness high chromium cast iron and involving deep hole machining, the overall efficiency is low, and
the production efficiency of the rotor is constrained by equipment, cutting tools, and processing methods.
This article takes the shearing type internal mixer GN400-4 angular rotor as an example to explore how to
use Mazak E670H-4000U or 6000U turning and milling composite equipment for processing, and designs
corresponding turning and milling composite processes. The process design system provides a detailed
explanation of the rotor's component structure, machine tool structure, clamping scheme, tool scheme,
material characteristics, tool material selection, machining parameter settings, and step design for each
process. By integrating traditional multiple processes into an integrated machining method that combines
turning, milling, and drilling, and using advanced tools such as ceramics, cubic boron nitride, and reversible
gun drills, it has been verified that this method can significantly improve the production efficiency of rotors.
Key words: rotor; turn-milling combined machining; ceramics; high chromium cast iron; deep hole
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郑杰 ：加快国产特种橡胶生产应用
Zheng Jie: Expediting the production and application of domestically produced specialty rubber

2025 年 3 月 5 日，十四届全国人大三次会议，在北京人民大会堂开幕。来自广东农垦茂名垦区的全国人大
代表郑杰，如期参会。作为茂名农垦集团公司科技生产部部长，他提交了五个方面的议案建议。其中，“ 加快国
产特种天然橡胶生产应用 ” 的建议，事关中国天然橡胶事业发展。
郑杰表示，随着中国高端制造领域的发展，对高性能特种天然橡胶的需求很大。如航空轮胎、高铁减振、探
空气球等，都必须用到大量特种橡胶。然而，中国特种天然橡胶高度依赖进口。特别是航空轮胎领域，国产的普
通标准胶，难以满足高性能的要求，全部依赖进口。这是航空轮胎材料中，唯一未实现国产化的关键材料，也是 “ 卡
脖子 ” 的材料。
近年来，国产特种天然橡胶的研制、生产与应用，取得新突破。但在特种胶生产质量、供给能力，以及下游
企业应用上，都有待加强。加快国产特种天然橡胶生产应用，是突破 “ 卡脖子 ” 困境的战略选择。
同时，也是保障国家战略资源安全的重要举措。
他建议，由国家发改委统筹协调相关部委，尽快制定政策，加快国产特种橡胶生产应用进程。包括特种胶园
生产补助、加工设备更新改造、产业链上下游对接，以及橡新技术新产品应用推广等方面。
摘编自 “ 轮胎世界网 ”

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