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Titanium carbide reinforced cast iron material and casting manufacturing method thereof

A titanium carbide and cast iron technology, which is applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of complex manufacturing methods of connecting arms, difficult space for improvement, low yield and other problems, so as to improve crushing efficiency, reduce costs, improve The effect of yield

Active Publication Date: 2021-06-18
江苏华永复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, how to further improve the strength and toughness of iron-based composite materials and their castings on the basis of existing high-performance iron-based composite materials has become an important research topic, but this obviously has great difficulties and often has limited room for improvement.
[0003] In addition, the manufacturing method for the connecting arm used on the vehicle is complicated and the yield is low

Method used

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  • Titanium carbide reinforced cast iron material and casting manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This example focuses on titanium carbide reinforced cast iron materials.

[0046] The applicant found that, on the basis of the existing technology, by improving the powder formation, compounding and / or addition process, and optimizing the composition and proportion of the powder, iron-based composite materials and their products with higher mechanical properties can be obtained.

[0047]Specifically, the applicant found in practice and research that when the number of moles of C is less than the number of moles of Ti, especially if the ratio of the number of moles of C to the number of Ti is kept between 0.7-0.94, C and Ti is all combined to form TiC without residual free C, which can achieve higher strength and toughness; the melting point of carbon powder is higher, while the melting point of iron powder and / or titanium powder is relatively low. When the diameter of carbon powder is smaller than that of iron powder And / or when the diameter of the titanium powder is m...

Embodiment 2

[0069] In this embodiment, the casting is mainly described, and the titanium carbide-reinforced cast iron material in Embodiment 1 is mainly used to prepare it.

[0070] In the prior art, a hollow part is formed through the first connecting arm, the central part and the second connecting arm of the casting. This structure achieves good strength and weight reduction effects, but since the hollow part penetrates through the first connecting The entire length of the central part and the second connecting arm is difficult to accurately locate when arranging the corresponding mold core in the mold, and it is relatively difficult to take it out, which is easy to damage the casting.

Embodiment approach

[0071] For this reason, a casting with a new structure is proposed to solve the above problems. According to a preferred embodiment of the present invention, such as figure 1 As shown, the casting includes:

[0072] Central Section 11:

[0073] Two first connecting arms 13 extend to one side from the central part 11 and are arranged symmetrically with respect to a first axis of the central part 11, the first axis extending along the length direction of the casting, the first connecting arms The end of 13 is provided with a first mounting hole; and

[0074] Two second connecting arms 12 extend from the central part 11 to the other side and are arranged symmetrically with respect to the first axis, and the ends of the second connecting arms 12 are provided with second mounting holes;

[0075] Wherein, the upper or lower surface of the first connecting arm 13 is provided with a first weight-reducing groove 15, and the central part 11 is provided with a through hole extending a...

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Abstract

The invention provides a titanium carbide reinforced cast iron material and a casting manufacturing method thereof. The titanium carbide reinforced cast iron material is manufactured through the following steps of preparing a titanium block and a carbon block with the mass ratio being 4.2 to 5.6: 1; placing the titanium block into a smelting furnace with the vacuum degree of 10 <-1 > to 10 <-2 > Pa so as to be smelted, and obtaining titanium powder through high-speed argon gas flow; mechanically crushing the carbon block into carbon particles with the size being smaller than 300 meshes, placing the carbon particles and the titanium powder into the smelting furnace, and forming a uniform mixture of the carbon powder and the titanium powder through high-speed argon gas flow; and melting nodular cast iron, adding the mixture into the molten nodular cast iron, carrying out heat preservation for a preset time, pouring to obtain an as-cast composite material, and carrying out isothermal quenching heat treatment on the as-cast composite material to obtain the cast iron material.

Description

technical field [0001] The invention relates to the field of iron-based composite materials, and more specifically, relates to a titanium carbide reinforced cast iron material and a method for manufacturing the casting. Background technique [0002] With the development of society and industry, the performance requirements for structural parts are also constantly increasing. Therefore, how to further improve the strength and toughness of iron-based composite materials and their castings on the basis of existing high-performance iron-based composite materials has become an important research topic, but this obviously has great difficulties and often has limited room for improvement. . [0003] In addition, the manufacturing method for the connecting arm used on the vehicle is complicated and the yield is low. [0004] In view of the above, the present invention aims to provide a titanium carbide reinforced cast iron material and its casting manufacturing method to solve one...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/08C22C37/04C21D1/20B22C9/22B62D63/04
CPCC22C33/08C22C37/04C21D1/20B22C9/22B62D63/04
Inventor 钱金红朱劲松沈林红
Owner 江苏华永复合材料有限公司
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