Casting method for turbine shell

A turbine shell and riser technology, which is applied to casting molding equipment, casting molds, and casting mold components, can solve problems that affect the quality of castings, cold insulation of casting partitions, etc., to eliminate slag hole defects, reduce cold insulation, and ensure The effect of throughput

Active Publication Date: 2017-04-26
CRRC CHANGZHOU AUTO PARTS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, about 40 boxes of molten iron need to be poured in each furnace. As time goes by, the temperature of the molten iron will gradually decrease. casting quality

Method used

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  • Casting method for turbine shell
  • Casting method for turbine shell
  • Casting method for turbine shell

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Embodiment Construction

[0037] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or selectively mutually exclusive embodiments with other embodiments.

[0039] See Figure 1 to Figure 5 , figure 1 It is a schematic front view of the casting process of the present invention; figure 2 for figure 1 Schematic diagram of left view; image 3 for figure 1 Schematic diagram of the A-A section; Figure 4 Is a three-dimensional schematic diagram of the casting process of th...

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Abstract

The invention provides a casting method for a turbine shell. The turbine shell is internally provided with a partition plate. The casting process comprises the following steps that S1, a riser (6) is placed at the edge of a mold core of the turbine shell, and the riser (6) is made to be connected with the mold core of the turbine shell; S2, a transverse pouring gate and a flow resistant channel (4) are arranged in a mold, the transverse pouring gate is provided with a plurality of water inlets (7) which are connected to the periphery of the mold core of the turbine shell at intervals, one end of the flow resistant channel (4) is connected with the transverse pouring gate, and the other end of the flow resistant channel (4) is connected with the riser (6); S3, pouring liquid is injected into the sand mold and is filtered; and S4, the filtered pouring liquid enters a cavity of the turbine shell through the multiple water inlets (7) and the flow resistant channel (4), pouring is completed, and the turbine shell is obtained. According to the casting method for the turbine shell, cold shut of the partition plate of the turbine shell and the casting surface slag hole defect can be eliminated, and the internal quality and the yield of the turbine shell are improved.

Description

Technical field [0001] The invention relates to the field of turbochargers, in particular to a method for casting a turbine shell. Background technique [0002] The turbocharger uses the inertial impulse of the exhaust gas discharged from the engine to push the turbine in the turbine chamber, and the turbine drives the coaxial impeller. The impeller presses the air sent from the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the wheel speed increase simultaneously, and the impeller compresses more air into the cylinder. The increase in air pressure and density can burn more fuel, and the corresponding increase in fuel volume can increase the engine. The output power. Generally speaking, the engine power and torque after installing an exhaust gas turbocharger should be increased by 20%-30%. However, the exhaust gas turbocharger technology also has its points that must be paid attention to. That is, the pum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C9/02B22C9/08
CPCB22C9/02B22C9/086B22C9/22
Inventor 陈呈祥杜崇山严成吴翩翩
Owner CRRC CHANGZHOU AUTO PARTS CO LTD
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