阅读说明：本技术 一种高清洗性高润滑且防锈的湿砂造型脱模剂 (High-cleanability, high-lubrication and antirust green sand molding release agent ) 是由 张斌 于 2021-07-23 设计创作，主要内容包括：本发明涉及脱模剂技术领域,且公开了一种高清洗性高润滑且防锈的湿砂造型脱模剂,由以下质量百分比的各组分组成：溶剂油72-86份、高级润滑剂3-5份、高级脂肪酸3-5份、表面活化剂2-5份、水5-10份和滑石粉1-3份。该高清洗性高润滑且防锈的湿砂造型脱模剂,能够解决目前脱模剂功能单一,不易清洗,润滑性不足且不防锈,不能满足目前使用需求的问题。(The invention relates to the technical field of mold release agents, and discloses a high-cleanability, high-lubrication and anti-rust green sand molding mold release agent which is composed of the following components in percentage by mass: 72-86 parts of solvent oil, 3-5 parts of high-grade lubricant, 3-5 parts of high-grade fatty acid, 2-5 parts of surfactant, 5-10 parts of water and 1-3 parts of talcum powder. The high-washability high-lubrication and anti-rust wet sand molding release agent can solve the problems that the existing release agent is single in function, not easy to clean, not enough in lubricity and not anti-rust, and cannot meet the current use requirement.)

1. The high-cleanability, high-lubrication and antirust green sand modeling release agent is characterized by comprising the following components in percentage by mass: 72-86 parts of solvent oil, 3-5 parts of high-grade lubricant, 3-5 parts of high-grade fatty acid, 2-5 parts of surfactant, 5-10 parts of water and 1-3 parts of talcum powder.

2. The process for producing the highly washable, highly lubricated and rust-preventive green sand molding die release agent according to claim 1, which comprises the steps of:

s1: selecting raw materials: solvent oil, higher lubricant, higher fatty acid, surfactant, water and talcum powder;

s2: weighing required parts of solvent oil, a high-grade lubricant, high-grade fatty acid, a surfactant, water and talcum powder according to production requirements;

s3: solvent oil is taken as a basic raw material, a higher lubricant and higher fatty acid are added, and the mixture is mixed and stirred;

s4: and (3) after the mixed solvent in the S3 is uniformly stirred, adding the surfactant and the water, heating and stirring at constant temperature, and adding the talcum powder during stirring to form the green sand molding release agent.

3. The process according to claim 2, wherein the wet sand mold release agent has high detergency, high lubricity and excellent rust resistance, and further comprises: and screening and removing impurities from the talcum powder, adding the talcum powder into a ball mill for ball milling, and grinding for multiple times to obtain the fine talcum powder.

4. The process according to claim 2, wherein the wet sand mold release agent has high detergency, high lubricity and excellent rust resistance, and further comprises: in the step S3, the solvent oil, the higher lubricant and the higher fatty acid are stirred by a stirrer, the stirring time is 15-20min, and the stirring speed is 100-120 r/min.

5. The process according to claim 2, wherein the wet sand mold release agent has high detergency, high lubricity and excellent rust resistance, and further comprises: in the step S4, the heating temperature is 150 ℃ and the constant temperature is 25-30min, the stirring speed is 400r/min and the stirring temperature is kept at 400-.

6. The process according to claim 2, wherein the wet sand mold release agent has high detergency, high lubricity and excellent rust resistance, and further comprises: in the step S4, after adding the talcum powder, the stirring speed is 550-700r/min, the stirring time is 30-40min, and the stirring temperature is 110-125 ℃.

7. The process according to claim 2, wherein the wet sand mold release agent has high detergency, high lubricity and excellent rust resistance, and further comprises: and in the step S4, after the green sand modeling release agent is formed, stirring at a low speed, cooling to 30-40 ℃, discharging and packaging.

Technical Field

The invention relates to the technical field of mold release agents, in particular to a high-cleanability, high-lubricity and antirust green sand molding mold release agent.

Background

At present, pure oil-based release agents such as kerosene, diesel oil or light engine oil are mostly adopted in a casting factory during green sand molding, and the release agents are single in function, difficult to clean, insufficient in lubricating property and not rust-proof, and cannot meet the current use requirements.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a high-cleanability, high-lubrication and anti-rust wet sand modeling release agent, which has the advantages of high-cleanability, high-lubrication and anti-rust, and solves the problems that the existing release agent has single function, is difficult to clean, has insufficient lubricity and is not anti-rust and cannot meet the current use requirements.

(II) technical scheme

In order to realize the purposes of high cleaning performance, high lubrication and rust prevention, the invention provides the following technical scheme: a high-cleanability, high-lubrication and antirust green sand modeling release agent comprises the following components in percentage by mass: 72-86 parts of solvent oil, 3-5 parts of high-grade lubricant, 3-5 parts of high-grade fatty acid, 2-5 parts of surfactant, 5-10 parts of water and 1-3 parts of talcum powder.

A method for producing a wet sand molding release agent having high detergency, high lubricity and rust resistance, comprising the steps of:

s1: selecting raw materials: solvent oil, higher lubricant, higher fatty acid, surfactant, water and talcum powder;

s2: weighing required parts of solvent oil, a high-grade lubricant, high-grade fatty acid, a surfactant, water and talcum powder according to production requirements;

s3: solvent oil is taken as a basic raw material, a higher lubricant and higher fatty acid are added, and the mixture is mixed and stirred;

s4: and (3) after the mixed solvent in the S3 is uniformly stirred, adding the surfactant and the water, heating and stirring at constant temperature, and adding the talcum powder during stirring to form the green sand molding release agent.

Preferably, the talcum powder is screened to remove impurities, and then is added into a ball mill for ball milling, and is ground for multiple times to obtain the fine talcum powder.

Preferably, in the step S3, the solvent oil, the higher lubricant and the higher fatty acid are stirred by a stirrer, the stirring time is 15-20min, and the stirring speed is 100-120 r/min.

Preferably, in the step S4, the heating temperature is 150 ℃ at 120-.

Preferably, in the step S4, after the talc powder is added, the stirring speed is 550-700r/min, the stirring time is 30-40min, and the stirring temperature is 110-125 ℃.

Preferably, in the step S4, after the green sand mold release agent is formed, the green sand mold release agent is stirred at a low speed and cooled to 30 to 40 ℃, and then the green sand mold release agent is discharged and packaged.

(III) advantageous effects

Compared with the prior art, the invention provides a high-cleanability, high-lubrication and antirust green sand modeling release agent, which has the following beneficial effects:

the high-cleanability high-lubrication and anti-rust wet sand molding release agent has high cleanability, and reduces the difficulty of increasing the cleaning of a mold; the lubricating oil has high lubricity and excellent demolding property, reduces the demolding difficulty and improves the mold precision; meanwhile, the antirust paint has excellent antirust property, prevents the mold from rusting and corroding, and meets the current use requirements.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A high-cleanability, high-lubrication and antirust green sand modeling release agent comprises the following components in percentage by mass: 86 parts of solvent oil, 3 parts of higher lubricant, 3 parts of higher fatty acid, 2 parts of surfactant, 5 parts of water and 1 part of talcum powder.

Example 2

A high-cleanability, high-lubrication and antirust green sand modeling release agent comprises the following components in percentage by mass: 72 parts of solvent oil, 5 parts of higher lubricant, 5 parts of higher fatty acid, 5 parts of surfactant, 10 parts of water and 3 parts of talcum powder.

Example 3

A method for producing a wet sand molding release agent having high detergency, high lubricity and rust resistance, comprising the steps of:

s1: selecting raw materials: the talcum powder is subjected to screening and impurity removal, impurities contained in the talcum powder are screened and taken out, and then the talcum powder is added into a ball mill for ball milling and is ground for multiple times to obtain fine talcum powder;

s2: weighing required parts of solvent oil, a high-grade lubricant, high-grade fatty acid, a surfactant, water and talcum powder according to production requirements;

s3: adding a higher lubricant and a higher fatty acid into solvent oil serving as a basic raw material, mixing and stirring the solvent oil, the higher lubricant and the higher fatty acid, and stirring the solvent oil, the higher lubricant and the higher fatty acid by a stirrer for 15min at a stirring speed of 100 r/min;

s4: and after the mixed solvent in the S3 is uniformly stirred, adding the surfactant and water, heating the mixed solvent, stirring at a constant temperature, keeping the temperature at 150 ℃ for 25min, continuously stirring at the constant temperature, wherein the stirring speed is 350r/min, adding the talcum powder during stirring, stirring at the speed of 700r/min for 30min, stirring at the temperature of 125 ℃, forming a green sand molding release agent, then, cooling to 30 ℃ by low-speed stirring, discharging and packaging.

Experimental data

The wet sand mold release agent in the embodiments 1 and 2 and the commercially available wet sand mold release agent are divided into two groups ABC, group a is the wet sand mold release agent in the embodiment 1, group B is the wet sand mold release agent in the embodiment 2, group C is the commercially available wet sand mold release agent, and the groups a and B are used in the same working environment, and the mold data after one week of use are compared as follows:

in conclusion, the high-cleanability, high-lubrication and anti-rust wet sand modeling release agent has high cleanability, and the difficulty of cleaning the mold is reduced; the lubricating oil has high lubricity and excellent demolding property, reduces the demolding difficulty and improves the mold precision; meanwhile, the antirust paint has excellent antirust property, prevents the mold from rusting and corroding, and meets the current use requirements.

It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention.

It is intended that the present invention may be embodied in many forms of modification, alteration, replacement, and alteration, and that the scope of the present invention be limited only by the appended claims and equivalents thereof.