Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pouring method and device of ultra-large complicated casting

A pouring method and super-large technology, which are applied to equipment, molds, cores and other directions for feeding molten metal into casting molds, which can solve the difficulty of producing cast iron cylinder blocks of large tonnage and large-bore diesel engines, and it is difficult to ensure large-bore diameters. Diesel engine cylinder block mechanical performance requirements and other issues to achieve the effect of ensuring compactness, good performance, and avoiding scouring

Active Publication Date: 2010-10-27
YICHANG MARINE DIESEL ENGINE
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the relatively thick wall thickness and heavy tonnage of the super-large-bore cylinder block, it is difficult to guarantee the mechanical performance requirements of the super-large-bore diesel engine cylinder block if the pouring scheme of the ordinary small and medium-bore diesel engine cylinder block is adopted.
Therefore, it is very difficult to produce the cast iron cylinder block of super large bore diesel engine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pouring method and device of ultra-large complicated casting
  • Pouring method and device of ultra-large complicated casting
  • Pouring method and device of ultra-large complicated casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Example: such as figure 1 , figure 2 and image 3 As shown, taking the K90MC-C diesel engine cylinder block as an example: 1) Four independent runners are set up in the mold 1 from top to bottom: runner A7, runner B8, runner C9, and runner D10.

[0030] 2) Set the electrode at the designated position A of the sprue basin 2 to lead two wires into the servo circuit 11. Because the structure of the servo circuit 11 is the same, the connection with each electrode is called the servo circuit 11 below, preferably This position A is close to the upper end of the sprue basin 2; in the mold 1, the electrode is set at the position B close to the outlet of the runner B8, and two wires are connected to the servo circuit 11; the same is set at positions C and D, because the runner The opening of A7 is located at the bottom, which is the channel for pouring first, so position A is close to the upper end of the sprue basin 2, and pouring starts after there is a certain capacity of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to pouring method and device of an ultra-large complicated casting, wherein the casting method comprises the following steps of: arranging a plurality of pouring channels on a casting mould; arranging electrodes in the outlet and the pouring basin of each pouring channel, wherein the electrode is electrically connected with each servo circuit; when pouring molten iron, switching on the electrodes, and controlling an electromagnetic directional valve to be switched on by the servo circuits through the electrodes; controlling the action of a driving cylinder in each plug device by the electromagnetic directional valve, so that the pouring channels are sequentially opened by the plug devices, and the molten iron flows into each pouring channel; and obtaining the ultra-large complicated casting with excellent casting quality through the steps. The technical requirement and the working environment requirement of a K90MC-C diesel engine cylinder body produced by adopting the method and the device are satisfied, and meanwhile, casting defects do not exist on the assembled surface where the cylinder body is sealed with a cylinder sleeve thereof and a piston rod filler and on the assembled surface where the cylinder body is combined with parts, such as a cylinder cover and the like, thereby ensuring the good use performance of the cylinder body.

Description

technical field [0001] The invention relates to a pouring method and a device, in particular to a pouring method and a device suitable for pouring a cast iron cylinder block of a super large-bore diesel engine. Background technique [0002] As a super-large complex casting, the cast iron cylinder block of a super-large-bore diesel engine is one of the key components of a low-speed high-power marine diesel engine. Since the cylinder block is the core high-temperature and high-pressure part during the operation of the diesel engine, it bears the explosive impact force generated during the combustion process, and its mechanical performance requirements are relatively high. At the same time, the cylinder block is not allowed to have any tiny casting defects on the sealing assembly surface of the cylinder block, the piston rod stuffing box, and the assembly surface of the cylinder head and other components. However, due to the relatively thick wall thickness and heavy tonnage of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22D35/04B22C9/08
Inventor 郭远景张苏吴有德郝博魁
Owner YICHANG MARINE DIESEL ENGINE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com