阅读说明：本技术 异型材塑料挤出机定型模具用在线清洗剂 (Online cleaning agent for profiled bar plastic extruder shaping mold ) 是由 刘鲁亮 信宏波 李勇 于 2020-06-03 设计创作，主要内容包括：本发明公开了异型材塑料挤出机定型模具用在线清洗剂,其特征在于：包括重量百分比为草酸0.5-0.7％,柠檬酸盐2-3％,甲酸0.5-0.6％,缓蚀剂0.2-0.4％和水95.3-96.8％,以上重量份的原料混合成溶剂保持清洗温度为40-90℃；本发明实现不停机在线清理模具表面水垢和结晶体,提高产品外观质量,投入成本低,运营成本低,方案简单,易于实现,经济实用,大大提高生产效率,减少模具表面杂质,提高产品质量。(The invention discloses an online cleaning agent for a profiled bar plastic extruder stock mould, which is characterized by comprising the following components in parts by weight: comprises 0.5 to 0.7 percent of oxalic acid, 2 to 3 percent of citrate, 0.5 to 0.6 percent of formic acid, 0.2 to 0.4 percent of corrosion inhibitor and 95.3 to 96.8 percent of water in percentage by weight, and the raw materials are mixed into a solvent to keep the cleaning temperature at 40 to 90 ℃; the invention realizes the online cleaning of scale and crystal on the surface of the die without stopping the machine, improves the appearance quality of products, has low investment cost, low operation cost, simple scheme, easy realization, economy and practicality, greatly improves the production efficiency, reduces the impurities on the surface of the die and improves the product quality.)

1. The online cleaning agent for the profiled bar plastic extruder shaping mold is characterized in that: comprises 0.5 to 0.7 percent of oxalic acid, 2 to 3 percent of citrate, 0.5 to 0.6 percent of formic acid, 0.2 to 0.4 percent of corrosion inhibitor and 95.3 to 96.8 percent of water in percentage by weight, and the raw materials are mixed into a solvent to keep the cleaning temperature at 40 to 90 ℃.

2. An online cleaning agent for a profiled bar plastic extruder stock mold according to claim 1, wherein the online cleaning agent comprises: the corrosion inhibitor is one or a mixture of more of chromate, nitrite and vanadate.

3. An online cleaning agent for a profiled bar plastic extruder stock mold according to claim 1, wherein the online cleaning agent comprises: the citrate is one or a mixture of sodium citrate and potassium citrate.

4. The preparation method of the online cleaning agent for the profiled bar plastic extruder shaping mold is characterized by comprising the following steps of: the method comprises the following steps: 1) stirring and mixing oxalic acid powder, citrate powder and a corrosion inhibitor to obtain a mixture A; 2) mixing and stirring water and formic acid to obtain a mixture B; 3) adding A and B into a reaction kettle, and fully stirring for 0.4-0.5 h under the conditions that the pressure of the reaction kettle is 100-120Kpa and the temperature is 60-90 ℃; 4) pouring the mixed liquid in the reaction kettle into an evaporator, performing rotary distillation for 2-3 hours, and placing the mixture into a filtering centrifuge with the centrifugal speed of 1200-2000 rpm for centrifugation to obtain the cleaning agent; 5) storing the cleaning agent obtained in the step 4) at the temperature of 40-90 ℃.

Technical Field

The invention relates to the technical field of die cleaning, in particular to an online cleaning agent for a profiled bar plastic extruder shaping die.

Background

During the production process of the profiled bar plastic extruder, scale and lubricant crystals are easily generated on the surface of the sizing die and are not easy to remove, a large amount of scale and lubricant crystals are generated after the sizing die is online for a period of time, certain damage is caused to the appearance of a produced product after the scale and lubricant crystals are generated, the quality of the product is affected, the sizing die needs to be stopped and detached to be cleaned in an ultrasonic wave die boiling machine, the production can be continued online after the scale and the crystal are removed from the surface of the die, the production efficiency is seriously reduced, and the production cost is increased.

Disclosure of Invention

The invention mainly aims to provide an online cleaning agent for a profiled bar plastic extruder shaping mold, which can effectively solve the existing problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that: the online cleaning agent for the profiled bar plastic extruder shaping mold is characterized in that: comprises 0.5 to 0.7 percent of oxalic acid, 2 to 3 percent of citrate, 0.5 to 0.6 percent of formic acid, 0.2 to 0.4 percent of corrosion inhibitor and 95.3 to 96.8 percent of water in percentage by weight, and the raw materials are mixed into a solvent to keep the cleaning temperature at 40 to 90 ℃.

Preferably, the corrosion inhibitor is one or a mixture of more of chromate, nitrite and vanadate.

Preferably, the citrate is one or a mixture of sodium citrate and potassium citrate.

The preparation method of the online cleaning agent for the profiled bar plastic extruder shaping mold is characterized by comprising the following steps of: the method comprises the following steps: 1) stirring and mixing oxalic acid powder, citrate powder and a corrosion inhibitor to obtain a mixture A; 2) mixing and stirring water and formic acid to obtain a mixture B; 3) adding A and B into a reaction kettle, and fully stirring for 0.4-0.5 h under the conditions that the pressure of the reaction kettle is 100-120Kpa and the temperature is 60-90 ℃; 4) pouring the mixed liquid in the reaction kettle into an evaporator, performing rotary distillation for 2-3 hours, and placing the mixture into a filtering centrifuge with the centrifugal speed of 1200-2000 rpm for centrifugation to obtain the cleaning agent; 5) storing the cleaning agent obtained in the step 4) at the temperature of 40-90 ℃.

Compared with the prior art, the invention has the following beneficial effects: the invention realizes the online cleaning of scale and crystals on the surface of the die without stopping the machine, improves the appearance quality of products, has low investment cost, low operation cost, simple scheme, easy realization, economy and practicability; greatly improving the production efficiency, reducing the impurities on the surface of the die and improving the product quality.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.