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Longitudinal corner crack of chamfered slab and optimization of mould

Journal of Iron and Steel Research International 2023年第2期30卷 259-266页

作者： Hong-biao Tao Hui Zhang He-ping Liu Ming-lin Wang National Engineering&Research Center of Continuous Casting Technology CISRIBeijing100081China

Chamfered mould has gradually become a new technology equipment to eliminate transverse corner ***,longitudinal corner crack ratio of chamfered slab was very *** microstructure was detected in the area where the longitudinal corner crack *** of narrow face shape and taper distribution of mould copper plate on longitudinal corner crack was studied by industrial *** velocity distribution in the narrow copper plate was studied by numerical *** the premise of preventing cooling water from nuclear boiling,improvement measures of mould cooling process and water seam structure were put forward through heat transfer *** results showed that local taper of the meniscus region of mould should be increased to prevent generation of longitudinal corner *** slope length of narrow copper plate should be controlled within 55 mm,and chamfering angle should be controlled at about 30°.Average water velocity should be more than 7.0 m/*** flat and chamfering regions of narrow copper plate working face should be designed as double taper and funnel structure,*** water seam in the chamfering region should preferentially choose the combined cooling structure with two holes and one *** order to prevent the extension of longitudinal corner crack,chamfered narrow face foot roller should be used.

关键词： Chamfered mould Longitudinal corner crack Copper plate shape mould water velocity mould taper

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The Camshaft Timing Gear Forming Process Analysis and Die Design

The Camshaft Timing Gear Forming Process Analysis and Die De...

引用

2018中国汽车工程学会年会

作者： GU WenJin SUN Lichen Liaoning Xingcheng Powder Metallurgy Co. LTD

this article through to the analysis of the camshaft timing gear product figure,combining with the characteristics of powder metallurgy parts forming and the production technology of the camshaft timing gear is *** to the experience of the previous camshaft timing gear production,optimization design,a set of pressing mould overcomes the camshaft timing gear easy to crack during forming,the difficult problems of demoulding,to run the production.

关键词： powder metallurgy process analysis pressing mould mould taper the die structure

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