1) positive and negative directional integrated bits
正反向一体化钻头
2) positive and negative bit
正反转扩底钻头
1.
This paper mainly introduces the new use, preponderance analysis and construction technology of the bottom- extending aperture , and designs the positive and negative bit and its construction method comparing with the usual bottom-extending aperture.
本文主要介绍了扩底孔的创新应用、优势分析及成孔方法;并结合常规扩底孔成孔方法设计出新型正反转扩底钻头及其施工方法。
3) integrated drilling and cementing fluid technique
钻固一体化
4) high-pressure vibro-grouting
钻喷一体化
1.
high-pressure vibro-grouting as principal with conventional grouting as supplementary, drilling and grouting simultaneously, self-setting mortar grouting etc.
为确保防渗墙墙体防渗效果和施工工期要求 ,在防渗墙大规模施工前进行了振孔高喷、常规高喷、钻喷一体化和自凝灰浆防渗墙等成墙工艺的现场试验 ,试验结果说明四项成墙工艺均可用于三峡工程三期土石围堰防渗
5) drilling and slotting integration
钻割一体化
1.
The study on the equipment of the high-pressure jet of abrasive drilling and slotting integration in outbursts prevention;
高压磨料射流钻割一体化防突设备的研究
6) integration of drilling and grouting
钻灌一体化
1.
Vibration turns round to form hole and the lift of drill can conduct spray grouting (also can designed to be swing or fixed grouting), which changes completely the construction technique of the drilling-grouting disjoint of common high-pressure rotary grouting and is a construction technique of true integration of drilling and grouting.
用振孔高喷进行桩墙施工,将钻灌工艺有机的衔接在一起,振动回转成孔,提钻即可旋喷(也可设制为摆喷或定喷),彻底改变了普通高压旋喷的钻灌脱节施工工艺,是一种真正意义上钻灌一体化的施工工艺。
补充资料：模具研磨抛光向自动化智能化方向发展
模具表面的精加工是模具加工中未能很好解决的难题之一。模具表面的质量对模具使用寿命、制件外观质量等方面均有较大影响，我国目前仍以手工研磨抛光为主，不仅效率低（约占整个模具制造周期的1/3），且工人劳动强度大，质量不稳定，制约了我国模具加工向高层次发展。因此，研究抛光的自动化、智能化是重要的发展趋势。日本已研制了数控研磨机，可实现三维曲面模具的自动化研磨抛光。另外，由于模具型腔形状复杂，任何一种研磨抛光方法都有一定局限性。应注意发展特种研磨与抛光方法，如挤压研磨、电化学抛光、超声抛光及复合抛光工艺与装备，以提高模具表面质量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条