Process for solving air holes and shrinkage porosity of top partition plate of double-flow-channel volute
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A dual-channel, volute technology, applied in manufacturing tools, metal processing equipment, casting and molding equipment, etc., can solve the problems of pore shrinkage defects and complexity of the flow channel baffle plate, improve the process yield and prolong the gas storage time. and space, the effect of solving positional defects
Pending Publication Date: 2021-11-23
西峡县众德汽车部件有限公司
View PDF10 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0002] Compared with the conventional single-channel volute, the casting production process layout of the double-channel volute is more complicated, and the most defects in the casting production process are the pores and shrinkage defects of the channel separator.
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Such as Figure 1-2 Shown: a dual-channel volute top diaphragm air hole and shrinkage solution process, including the following steps:
[0014] Step 1: Process Design: Reference figure 1 , determine the parting scheme according to the product structure, design the process according to the parting plan and conduct casting simulation analysis, and find out the position where the defect is most likely to appear on the top of the double-channel volute according to the results; generally, it is most likely to appear on the top of the product vortex;
[0015] Step 2: Plan determination: reference figure 2 , design the riser neck process boss at the position where the defect is found, design the riser on the upper part of the riser neck boss, add a heating block outside the riser, and delay the feed and exhaust of the riser to the pro...
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
Login to view more
Abstract
The invention discloses a process for solving air holes and shrinkage porosity of a top partition plate of a double-flow-channel volute. The process comprises the following steps of firstly, process design, wherein a parting scheme is determined according to a product structure, the process is designed according to the parting scheme, casting simulation analysis is carried out, the position where defects are most likely to appear at the top of the double-flow-channel volute is found out according to the result, and generally, defects are most likely to appear at the top of a vortex head; secondly, scheme determining, wherein a riser neck process boss is designed at the found defect position, a riser is designed at the upper part of the riser neck boss, a heating block is additionally arranged on the outer portion of the riser, and feeding and exhausting of the riser to the defect position of the product are delayed; and thirdly, mold design. The process design is a shell mold process, and a sand core comprises an upper shell, a lower shell, an inner supplementing sand core, a large flow channel core, a small flow channel core, an air chamber core combination, a pouring cup and an exhaust core. According to the process, the position defect of the top partition plate of a double-flow-channel turbocharging shell is effectively overcome, the bad defects of cold shut, air holes and shrinkage porosity are prevented from being generated in the casting process, the process yield is increased, and the production cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a process for solving air holes and shrinkage porosity of a partition plate at the top of a double-channel volute. Background technique [0002] Compared with the conventional single-channel volute, the casting production process layout of the double-channel volute is more complicated. The most common defects in the casting production process are the pores and shrinkage defects of the channel separator. Due to the small size of the double-runner volute partition, the end R1.5, and the thickness of 2.5mm, it is very easy to produce bad defects such as shrinkage and porosity of the cold trap during the casting process, which is generally difficult to solve. The problem of the runner partition in the normal production process accounts for 78% of the total scrap rate. Contents of the invention [0003] The purpose of the present invention is to overcome the above disad...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more