High-strength die casting zinc alloy containing Ca and Be for ocean platform

An offshore platform, high-strength technology, applied in the field of alloys, can solve the problems of complex smelting and pouring equipment and processes, toxic gas pollution of the environment, damage to alloy performance, etc., to reduce welding workload, reduce its own weight, and refine grains Effect

Inactive Publication Date: 2018-06-01
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two methods have their unavoidable defects, such as easy to produce toxic gas to pollute the environment and cause flux inclusions to damage the properties of the alloy
In addition, the smelting and pouring equipment and processes are complicated, which increases the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-strength die-cast zinc alloy containing Ca and Be for offshore platforms smelted at 450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.2wt.%, Be: 0.6wt.%; Cu: 1.8wt.%, Sc: 0.6wt.%, Co: 1.6wt.%, Te: 0.5wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 450 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 450°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-calcium alloy castings with complex shapes; the final heat...

Embodiment 2

[0020]A high-strength die-cast zinc alloy containing Ca and Be for offshore platforms smelted at 470 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.4wt.%, Be: 0.7wt.%; Cu: 1.9wt.%, Sc: 0.7wt.%, Co: 2.4wt.%, Te: 0.5wt.% .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 470 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 470 degrees for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-calcium alloy castings with complex shapes; the fin...

Embodiment 3

[0023] A high-strength die-cast zinc alloy containing Ca and Be for offshore platforms smelted at 490 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.0wt.%, Be: 0.6wt.%; Cu: 1.6wt.%, Sc: 0.8wt.%, Co: 2.6wt.%, Te: 0.4wt.% .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 490 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 490°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 14m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare zinc-calcium alloy castings with complex shapes; the final he...

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Abstract

The invention discloses a high-strength die casting zinc alloy containing Ca and Be for an ocean platform and a processing technology of the high-strength die casting zinc alloy. The zinc alloy is prepared from the following components by weight percent: 1.0 to 1.5 percent of Ca, 0.5 to 0.8 percent of Be, 1.5 to 2.0 percent of Cu, 0.5 to 0.9 percent of Sc, 1.5 to 2.8 percent of Co, 0.4 to 0.8 percent of Te, and the balance of zinc. The zinc-calcium alloy has excellent die casting performance and excellent mechanical performance. The high-strength die casting zinc alloy containing Ca and Be isexpected to be widely applied to the industry of novel ocean platforms.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a zinc-calcium alloy. Background technique [0002] Offshore platforms are structures that provide production and living facilities for activities such as drilling, oil production, transportation, observation, navigation, and construction at sea. Compared with land oil and gas exploitation, the ocean environment has strong ocean currents, sea temperature and pressure vary greatly with depth, and the structure of seabed rocks is very different from that of land wells. H in marine oil and gas 2 S, CO 2 and Cl - The content of such substances is generally high, the types of microorganisms on the seabed are complex, and the chemical corrosion and microbial corrosion capabilities are very strong. Therefore, metal materials such as stainless steel and corrosion-resistant alloys for offshore oil and gas exploration platforms generally require high corrosion resistance, high strength,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/00C22C18/02C22C1/02C22F1/16C22F1/02
CPCC22C18/00C22C1/02C22C18/02C22F1/02C22F1/165
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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