Forming method for improving structure property of QAl10-4-4 aluminum bronze alloy cast ingot

A technology for alloy ingots and microstructure properties, applied in furnace types, metal processing equipment, furnaces, etc., can solve the problems of limited forging deformation, coarse grains of ingots, and difficult to improve the structure, and achieve compact processing steps and flaw detection High level, fine grain effect
CN112427588AActive Publication Date: 2021-03-02SHAANXI HEYE SPECIAL STEEL TOOL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI HEYE SPECIAL STEEL TOOL
Publication Date
2021-03-02

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Abstract

The invention discloses a forming method for improving the structure property of a QAl10-4-4 aluminum bronze alloy cast ingot. According to the technical scheme, a sawn QAl10-4-4 aluminum bronze alloybar is heated to a preset high-temperature interval, heat preservation is conducted, and then cast ingot cogging forging is conducted; a blank obtained after ingot casting cogging is heated to a preset medium-temperature interval, heat preservation is conducted, and then intermediate procedure forging is conducted; a blank obtained after intermediate procedure forging is heated to the preset medium-temperature interval, heat preservation is conducted, and then final forging forming is conducted; and a blank which is finally forged and formed is annealed according to a preset temperature, andafter discharging and air-cooling, a finished product forging is obtained. According to the method, a forging with fine grains, uniform structure, high flaw detection level and good comprehensive performance can be obtained.
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Description

technical field

[0001] The invention belongs to the technical field of material processing, and in particular relates to a forming method for improving the microstructure and properties of a QAl10-4-4 aluminum bronze alloy ingot. Background technique

[0002] QAl10-4-4 aluminum bronze alloy is a kind of high-strength heat-resistant bronze, containing iron and manganese elements, stable mechanical properties at 400 ℃, good anti-friction, good corrosion resistance in the atmosphere, fresh water and sea water , widely used in ships and other fields. Usually the maximum specification of domestic QAl10-4-4 aluminum bronze extruded bar is Preset diameter of bars for small to medium forgings. For large-size forgings, limited by the length of the bar, once the forging ratio that can achieve upsetting is exceeded (ie ≥6, reasonable forging ratio ≤2.5), only ingot bars can be used.

[0003] Disadvantages and deficiencies of the prior art:

[0004] 1. At present, the largest domes...

Claims

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