Calculation method for shape sizes of cross gate cross sections of gating systems for casting

A gating system and cross-sectional shape technology, which is applied in the field of calculation of the cross-sectional shape and size of the runner of the casting gating system, can solve the problems of complex operation, time-consuming and laborious, inaccurate calculation results, etc., and achieve the effect of saving metal and accurate data

Inactive Publication Date: 2018-07-24
吉林省大洺液压件铸造技术科技开发有限公司
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Problems solved by technology

[0011] In order to solve the problems of inaccurate calculation results, complicated operations, and time-consuming and labor-intensive operations in the existing calculation method for the cr

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  • Calculation method for shape sizes of cross gate cross sections of gating systems for casting
  • Calculation method for shape sizes of cross gate cross sections of gating systems for casting
  • Calculation method for shape sizes of cross gate cross sections of gating systems for casting

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[0040] The present invention will be further described in detail below in conjunction with the drawings.

[0041] The method for calculating the cross-runner cross-section shape and size of the casting system for casting of the present invention is to calculate the cross-runner cross-section shape and size by the relational expression composed of a width / height ratio of 0.618 (golden section number). It mainly includes the following steps:

[0042] Step one, such as figure 1 As shown, the cross-section area of ​​the runner of the casting system is shown in formula (1). At the same time, the present invention uses the golden ratio with a width / height ratio of 0.618 to calculate, as shown in formula (2), by comparing the formula ( 1) Calculate and derive formula (3) with formula (2);

[0043] ∑Aru=h×w (1)

[0044] w=h×0.618 (2)

[0045] ∑Aru=h×h×0.618 (3)

[0046] In the formula, ∑Aru represents the cross-sectional area of ​​the runner, h represents the height of the runner cross-sectio...

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Abstract

The invention discloses a method for calculating shape sizes of cross gate cross sections of gating systems for casting, relates to the field of casting, and aims at solving the problem that existingcalculation methods are incorrect in calculation results, need table lookup in calculation processes, are complex to operate and waste time and labor. According to the calculation method, a golden section number 0.618 is adopted to calculate shape sizes of cross gate cross sections; a formula (as shown in the specification) is calculated for the golden section number 0.618 through an area formula(as shown in the specification) for cross gate cross sections of gating systems for casting and a specific value of a theoretical width w of a set cross gate cross section to a height of the cross gate cross section; and results that a is approximately equal to 0.636h and b is approximately equal to 0.601h are obtained through a calculation formula (as shown in the specification) of an upper sidelength c of the cross gate cross section, a calculation formula a=w+2c of a lower side length a of the cross gate cross section and a calculation formula b=w-2c of a practical width b of the cross gate cross section. According to the method, the calculation process does not need table lookup, and the calculation is simple and accurate.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a method for calculating the cross-sectional shape and size of a runner of a gating system for casting. Background technique [0002] Ductile cast iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel. It is based on its excellent performance that it has been successfully used to cast some complex stress, strength, toughness, and wear resistance. Parts with high performance requirements. Ductile iron has rapidly developed into a cast iron material that is second only to gray cast iron and is widely used. The so-called "substituting iron for steel" mainly refers to ductile iron. Spheroidal graphite cast iron is obtained through spheroidization and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially improves plasticity and toughness, thereby obtaining higher stren...

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Application Information

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IPC IPC(8): G06F17/50B22C9/08
CPCB22C9/082G06F30/17G06F30/20G06F2119/18
Inventor 崔洺诚刘洪福
Owner 吉林省大洺液压件铸造技术科技开发有限公司
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