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Low-cost soluble magnesium alloy and preparation method and application thereof

A magnesium alloy and soluble technology, which is applied in the field of low-cost soluble magnesium alloy and its preparation, can solve the problems of low mechanical properties, uneven and stable dissolution process, coarse grains, etc., so as to reduce ingot segregation, reduce deformation resistance, reduce effect of dosage

Active Publication Date: 2019-04-30
重庆昱华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the inventors have found that the aluminum alloy and magnesium alloy products obtained by the casting process have obvious casting structure characteristics: dendrite structure, relatively coarse crystal grains and different degrees of composition segregation; uneven stability

Method used

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  • Low-cost soluble magnesium alloy and preparation method and application thereof
  • Low-cost soluble magnesium alloy and preparation method and application thereof
  • Low-cost soluble magnesium alloy and preparation method and application thereof

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preparation example Construction

[0028] The second aspect of the present invention provides the above-mentioned low-cost soluble magnesium alloy preparation method, comprising the following steps: weighing pure magnesium ingot, pure aluminum ingot, Mg-Ca master alloy, Mg-Mn master alloy, Mg-Cu master alloy Alloy, Mg-Ni master alloy; Introduce protective gas and smelt, cast into ingot; Homogenize the ingot, cut into billets of corresponding size and peel; Hot extrusion into rods; The hot extrusion The extrusion conditions are: extrusion temperature 350-400°C, extrusion ratio 4-10, extrusion speed 10-20m / min; preferably extrusion temperature 350°C. The method of the invention has small extrusion ratio, high extrusion speed, and reduces equipment loss.

[0029] Further, the hot extrusion conditions are: an extrusion temperature of 350° C., an extrusion ratio of 8, and an extrusion speed of 20 m / min. The soluble magnesium alloy prepared under this hot extrusion condition has the best properties such as solubilit...

Embodiment 1

[0036] Embodiment 1 A kind of low-cost soluble magnesium alloy

[0037] The low-cost soluble magnesium alloy is Mg-Al-Ca-Mn-Cu-Ni magnesium alloy, which is composed of the following elements in mass percentage: Al 0.50wt%, Ca 0.90wt%, Mn 0.55wt%, Cu 0.40wt%, Ni 0.30wt%, the rest is Mg and unavoidable impurity elements.

Embodiment 2

[0038] Embodiment 2 A kind of low-cost soluble magnesium alloy

[0039] The low-cost soluble magnesium alloy is Mg-Al-Ca-Mn-Cu-Ni magnesium alloy, which is composed of the following elements in mass percentage: Al 0.40wt%, Ca 0.50wt%, Mn 0.45wt%, Cu 0.90wt%, Ni 0.10wt%, the rest is Mg and unavoidable impurity elements.

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Abstract

The invention belongs to the technical field of metal materials and processing, and relates to a low-cost soluble magnesium alloy and a preparation method and application thereof. The low-cost solublemagnesium alloy is used for preparing spare parts related to a multi-stage sliding sleeve sectional fracturing technology in shale oil and gas production. The alloy is Mg-Al-Ca-Mn-Cu-Ni magnesium alloy and comprises the following components in percentage by mass: 0.20-0.50wt% of Al, 0.20-1.00wt% of Ca, 0.30-1.10wt% of Mn, 0.10-1.20wt% of Cu, 0.10-0.50wt% of Ni, and the balance Mg and inevitable impurity elements. According to the low-cost soluble magnesium alloy prepared by the method, the tensile strength is not less than 280MPa; the yield strength is not less than 240MPa; the ductility is not less than 14%; and the dissolving rate in 3% KCl solution under the temperature of 93 DEG C is 50-60mg cm<-2>h<-1>.

Description

technical field [0001] The invention belongs to the technical field of metal materials and processing, and in particular relates to a low-cost soluble magnesium alloy and its preparation method and application, which can be used to prepare related parts for multi-stage sliding sleeve segmental fracturing technology for shale oil and gas development. Background technique [0002] The development of science and technology has promoted the continuous improvement of the global industrial automation level, which has led to a further increase in the demand for energy. Shale oil and gas, as one of the important directions for the development of the energy field at present and in the future, has high economic value, and the related exploitation technology has been successful in the United States and gradually spread to the world. According to statistics, my country's shale gas reserves rank first in the world, and shale oil reserves rank third in the world, with broad prospects for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/02C22C23/00C22C1/03
CPCC22C1/03C22C23/00C22C23/02
Inventor 刘运腾刘聪林涛周吉学刘洪涛庄海华马百常
Owner 重庆昱华新材料科技有限公司
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