Mold core and preparation method thereof and method for producing casting inner cavity by using mold core

A technology of casting inner cavity and core, which is applied in the direction of core, casting molding equipment, casting mold, etc., to avoid deformation due to external force, good bending effect, and easy removal.
CN102059321AInactive Publication Date: 2011-05-18XIAN AERO ENGINE CONTROLS
5 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN AERO ENGINE CONTROLS
Publication Date
2011-05-18
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention provides a mold, a preparation method thereof and a method for producing a casting inner cavity by using the mold core. The mold core is made of hollow material; and an alloy is arranged in the hollow structure of the mold core. The mold core made of brass replaces the traditional sand core, has higher structural strength and is suitable for complex fine hole inner cavities of an aluminum alloy casing to form. In the method for producing the mold core, the characteristic of low melting point aluminum alloy is used and the mold core is filled into a hollow brass tube to relieve the stress generated by bending the brass tube with favorable bending effect; in addition, the hollow brass section is prevented from being deformed due to external action in the bending process.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of casting, and relates to a core and its preparation method and a method for preparing the inner cavity of a casting by using the core, and is especially suitable for use in the casting of aluminum alloy castings with complex fine-pore inner cavities, and can also be used for difficult It is used in the casting of aluminum alloy castings whose inner cavity is formed by sand cores. Background technique

[0002] Cast aluminum alloy has excellent comprehensive properties and is widely used in aviation, aerospace, automobile and other industries. Aluminum alloy castings can be cast and formed by sand casting, metal casting, pressure casting, low pressure casting and other methods. For aluminum alloy castings with an inner cavity structure, the casting inner cavity is generally formed by various sand cores, and the sand cores are mainly made of various resin sands, oil sands, etc.

[0003] In aviation, aerospace, automo...

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