Cast wheel cavity exhaust device
An exhaust device and wheel technology, which is applied to casting molding equipment, casting molds, casting mold components, etc., can solve the problems of oxidation slag inclusion, pores, reducing the density of castings, reducing the effective cross-sectional area, etc. Breath hold area, improve yield, ensure high-quality production effect
Inactive Publication Date: 2017-05-24
CITIC DICASTAL
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] During the wheel casting process, the mold system is in the atmospheric environment. If the air in the cavity is not completely removed during the forming process, it is easy to cause defects such as oxidized slag inclusions and pores in the casting, which will affect the product quality.
In addition, the above-mentioned defects reduce the density of the casting structure and reduce the effective cross-sectional area, resulting in serious substandard mechanical properties, which have a great impact on the safety of vehicles
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] Such as figure 1 , figure 2 As shown, the improved wheel casting cavity exhaust device of the present invention includes a bottom mold 1, a side mold 2, a top mold 3, an upper exhaust pin 4 and a lower exhaust pin 5; at the window position corresponding to the wheel shape, the bottom mold 1 is provided with a boss 11 of a certain structure, and the corresponding groove cavity 31 is processed on the top mold 3. The profiles of the two are not in contact, and there is a gap of 0.2-0.5 mm. If the gap is too large, it is easy to form a casting If the flash is too small, it will affect the exhaust effect; process a stepped hole on the boss 11 of the bottom mold, install the lower exhaust pin 5 in the hole, and connect with the mold body by spot welding or bolts; in the groove cavity 31 of the top mold, the same Step holes are drilled, and vent pins 4 are installed, which are spot welded or bolted to the mold body; the number of vent pins depends on the size of the window, ...
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 cast wheel cavity exhaust device which comprises a bottom die (1), an edge die (2), a top die (3), an upper exhaust pin (4) and a lower exhaust pin (5). A boss (11) is arranged on the portion, corresponding to the window modeling portion of a wheel, of the bottom die, a groove cavity (31) is formed in the portion, corresponding to the boss, of the top die, the boss (11) of the bottom die is provided with a step hole, and the lower exhaust pin (5) is installed in the step hole. The top die and the bottom die are provided with an exhaust groove and exhaust pin dual structure, active exhaust of a die cavity is achieved, gas circulation smoothness is improved, a gas blocking area is eliminated, the defects of oxide inclusion, air holes, needle holes and the like likely to occur on castings are overcome, the finished product ratio is greatly improved, and high-quality production of wheels is ensured.
Description
technical field [0001] The invention relates to the field of moulds, in particular to a mold cavity exhaust device for cast wheel molds. Background technique [0002] During the wheel casting process, the mold system is in an atmospheric environment. If the air in the cavity is not removed during the forming process, it is easy to cause defects such as oxidized slag inclusions and pores in the casting, which will affect the product quality. In addition, the above-mentioned defects reduce the density of the casting structure and reduce the effective cross-sectional area, resulting in serious substandard mechanical properties, which have a great impact on the safety of the vehicle. Therefore, how to realize the smooth exhaust of the cavity is very important to the casting quality of the wheel. Active and effective measures must be taken to eliminate the gas-holding area of the mold cavity and promote the full filling of the aluminum liquid in order to effectively solve vario...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/28
CPCB22C9/067B22C9/28
Inventor 王凯庆王贵周鹏李昌海赵永旺
Owner CITIC DICASTAL