Die-casting release agent for aluminum alloy structural parts

A technology of release agent and structural parts, which is applied in the direction of casting molds, casting mold components, casting molding equipment, etc., and can solve the problems of increasing the difficulty of wastewater treatment, difficult separation of organic components and water, etc.

Active Publication Date: 2021-07-20
QUAKER CHEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In wastewater treatment, these surfactants make the organic matter dispersed stably in the waste liquid, which increases the difficulty of wastewater treatment, and it is difficult to separate the organic components from water.

Method used

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  • Die-casting release agent for aluminum alloy structural parts
  • Die-casting release agent for aluminum alloy structural parts
  • Die-casting release agent for aluminum alloy structural parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]

[0033] The modified silicone oil is a modified long-chain alkyl aryl silicone oil.

[0034] The pentaerythritol polyester is prepared by reacting and polymerizing pentaerythritol and C10-C12 saturated dibasic acid, and then esterifying with monoacid. The ratio of pentaerythritol to C10-C12 saturated dibasic acid is 1.8:1. C10-C12 saturated dibasic acid: 50% sebacic acid, 42% dodecanedioic acid, 8% 3-ethyl suberic acid. Monoacids used for esterification: 31% octanoic acid, 58% capric acid, 3% dodecanoic acid, 7% 4,4-diethylhexanoic acid, 6,6-diethyloctanoic acid, 1% of which .

[0035] The C8-C10 acid and ricinoleic acid composition, wherein caprylic acid 38%, neodecanoic acid 21%, isooctanoic acid 12%, ricinoleic acid 29%

[0036] The organic alkali composition comprises: monoethanolamine is 22% by weight, triethanolamine is 48%; N-hydroxyethyloctylamide is 30%.

[0037] The nonionic surfactant: C13-C15 fatty alcohol polyoxyethylene ether EO13 accounts for 30%,...

Embodiment 2

[0040]

[0041] The modified silicone oil is a modified long-chain alkyl aryl silicone oil.

[0042] The pentaerythritol polyester is prepared by reacting and polymerizing pentaerythritol and C10-C12 saturated dibasic acid, and then esterifying with monoacid. The ratio of pentaerythritol to C10-C12 saturated dibasic acid is 1.8:1. C10-C12 saturated dibasic acids: 61% sebacic acid, 30% dodecanedioic acid, 9% 3-ethyl suberic acid. Monoacids used for esterification: 66% octanoic acid, 24% capric acid, 3% dodecanoic acid, 6% 4,4-diethylhexanoic acid, 6,6-diethyloctanoic acid, 1% of which .

[0043] The C8-C10 acid and ricinoleic acid composition, wherein caprylic acid 20%, neodecanoic acid 29%, isooctanoic acid 20%, ricinoleic acid 31%

[0044] The organic base composition comprises: monoethanolamine is 19% by weight, triethanolamine is 51%; N-hydroxyethyloctylamide is 30%.

[0045] The nonionic surfactant: C13-C15 fatty alcohol polyoxyethylene ether EO13 accounts for 28%, ...

Embodiment 3

[0048]

[0049] The modified silicone oil is a modified long-chain alkyl aryl silicone oil.

[0050] The pentaerythritol polyester is prepared by reacting and polymerizing pentaerythritol and C10-C12 saturated dibasic acid, and then esterifying with monoacid. The ratio of pentaerythritol to C10-C12 saturated dibasic acid is 1.8:1. C10-C12 saturated dibasic acid: 50% sebacic acid, 42% dodecanedioic acid, 8% 3-ethyl suberic acid. Monoacids used for esterification: 31% octanoic acid, 58% capric acid, 3% dodecanoic acid, 7% 4,4-diethylhexanoic acid, 6,6-diethyloctanoic acid, 1% of which .

[0051] The C8-C10 acid and ricinoleic acid composition, wherein caprylic acid 38%, neodecanoic acid 21%, isooctanoic acid 12%, ricinoleic acid 29%

[0052] The organic alkali composition comprises: monoethanolamine is 22% by weight, triethanolamine is 48%; N-hydroxyethyloctylamide is 30%.

[0053] The nonionic surfactant: C13-C15 fatty alcohol polyoxyethylene ether EO13 accounts for 30%,...

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PUM

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Abstract

The invention discloses a die-casting release agent for an aluminum alloy structural part. According to the formula, specially-made pentaerythritol polyester is used for replacing a wax component, the demolding performance is guaranteed, meanwhile, the gas forming amount is effectively reduced, and the porosity is effectively reduced. Meanwhile, the components of the release agent and the characteristics of an application process are fully considered, the pH difference between a release agent diluent and a process waste liquid is utilized, the stability requirement of the diluent is met, meanwhile, the waste liquid treatability is improved, meanwhile, due to the combination of the organic acid and the organic amine, when the release agent waste liquid is treated, the combination can form a synergistic effect with a waste liquid treatment agent PAC, and the separation degree of the waste liquid is improved.

Description

technical field [0001] The invention relates to the field of die-casting release of aluminum alloy structural parts, in particular to a die-casting release agent for aluminum alloy structural parts. Background technique [0002] Aluminum alloy die-casting products are widely used in the fields of electronics, automobiles, electromechanical and home appliances. As an important process lubricant, release agent is widely used in the die-casting production process. Taking automotive structural parts as an example, it is different from other aluminum alloy die-casting products. Automotive structural parts have the characteristics of thin wall thickness and high tensile strength, and Subsequent processes also require heat treatment and welding, as shown in the table below: [0003] Die casting type Structure Ordinary Tensile strength, MPa >210 180 heat treatment heat treatable no requirement Weldability weldable no requirement Wall th...

Claims

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Application Information

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IPC IPC(8): B22C3/00B22D17/00
CPCB22C3/00B22D17/00
Inventor 张晓
Owner QUAKER CHEM CHINA
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