1. A paste tank cleaning agent is characterized in that: mainly comprises the following components in percentage by weight:

3-10% of high-boiling-point alcohol ether solvent;

1-10% of anionic surfactant;

1-5% of emulsifier;

6-10% of alkali;

the balance of water;

further, the high-boiling-point alcohol ether solvent is any one or a mixture of any more of diethylene glycol ethyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether;

the anionic surfactant is any one or mixture of any more of sodium dodecyl benzene sulfonate, alcohol sulfate, olefin sulfonate, secondary alkyl sulfonate and sulfo fatty acid ester salt;

the emulsifier is one or the mixture of isomeric alcohol polyoxyethylene ether EH-6 and octyl phenol polyoxyethylene ether OP-10;

the alkali is NaOH, KOH or Na₂CO₃One kind of (1).

2. The paste tank cleaner of claim 1, wherein: the high-boiling-point alcohol ether solvent is diethylene glycol monobutyl ether, the anionic surfactant is sodium dodecyl benzene sulfonate, the emulsifier is OP-10, and the alkali is Na₂CO₃。

3. The paste tank cleaner of claim 2, wherein: 5% of diethylene glycol monobutyl ether, 2% of sodium dodecyl benzene sulfonate, 3% of OP-10 and Na₂CO₃8 percent of the water content and 82 percent of the water content.

4. The method for producing a cleaning agent according to any one of claims 1 to 3, characterized in that: at normal temperature, firstly dissolving the alkali in water, stirring and dissolving, then adding the high-boiling-point alcohol ether solvent and the anionic surfactant, stirring, and finally adding the emulsifier, and uniformly stirring.

5. The method for producing a cleaning agent according to claim 3, characterized in that: at normal temperature, Na is firstly added₂CO₃Dissolving in water, stirring for dissolving, adding diethylene glycol monobutyl ether and sodium dodecyl benzene sulfonate, stirring, and finally adding OP-10, and stirring uniformly.

6. The cleaning method for cleaning the paste tank by using the cleaning agent as claimed in any one of claims 1 to 3, is characterized in that: the Paste tank is automatically fed into the peripheral shredding machine, shredded plastic fragments are conveyed into a prewashing pool through a conveyor, the cleaning agent is added into the prewashing pool, residues attached to the plastic fragments are diluted and cleaned, the prewashed plastic fragments enter a magnetic separator, iron fragments are separated from the plastic fragments, the plastic fragments are conveyed into a crusher, large plastic fragments are sheared into small plastic fragments by the crusher, then the small plastic fragments enter a powerful friction machine, the powerful friction machine peels the residues on the surface of a material again to remove the residues on the surface, the rubbed plastic enters a sinking-floating separation water tank, the crushed plastic fragments and impurities are separated and cleaned again, and the dehydrated plastic fragments are packaged as finished products for sale.

7. The method for cleaning a paste tank by using the cleaning agent as claimed in claim 5, wherein the method comprises the following steps:

and the Paste tank enters a first shredder to be decomposed into plastic fragments with the width of 2cm and the length of 25cm, and the plastic fragments enter a second shredder and have the particle size of less than 2cm after being sheared.

Background

Solder paste, known by the english name of solder paste, is a novel soldering material produced along with SMT (Surface Mount Technology, which is the most popular technique and process in the electronic assembly industry at present), and is a paste mixture formed by mixing solder powder, soldering flux, other surfactants, thixotropic agents and the like. The method is mainly used for welding electronic components such as surface resistance, capacitance, IC and the like of the printed circuit board in the SMT industry.

The solder paste is also called flux paste, is a special sticky flux, has complex internal components, is an important substance for manufacturing the solder paste, generally accounts for about 10% of the mass ratio of the solder paste, contains solder alloy powder for the rest 90%, and is prepared by mixing the solder paste and the solder powder through a special process.

When the used paste tank is recycled, a large amount of grease and ink remains in the tank, and therefore, it is necessary to clean the tank. The washing powder is added in the prior production to remove residues, the decontamination effect is not ideal, the foam is more, the mixed cleaning of a paste storage tank and other storage tanks can pollute other products, the quality of other products is reduced, the products are difficult to sell and the like, the oil dissolving effect can be improved by the reaction and heating of production personnel, but the heating condition of a workshop is not satisfied.

Therefore, a new cleaning agent needs to be developed and used for washing the paste tank independently.

Disclosure of Invention

The invention aims to provide a special cleaning agent for washing a paste tank, which has the advantages of good cleaning effect, small usage amount and high cleaning speed.

The technical scheme of the invention is as follows:

a paste tank cleaning agent mainly comprises the following components in percentage by weight:

3-10% of high-boiling-point alcohol ether solvent;

1-10% of anionic surfactant;

1-5% of emulsifier;

6-10% of alkali;

the balance of water;

further, the high-boiling-point alcohol ether solvent is any one or a mixture of any more of diethylene glycol ethyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether and dipropylene glycol butyl ether;

the anionic surfactant is any one or mixture of any more of sodium dodecyl benzene sulfonate, alcohol sulfate, olefin sulfonate, secondary alkyl sulfonate and sulfo fatty acid ester salt;

the emulsifier is one or the mixture of isomeric alcohol polyoxyethylene ether EH-6 and octyl phenol polyoxyethylene ether OP-10;

the alkali is NaOH, KOH or Na₂CO₃One of (1);

preferably, the high-boiling alcohol ether solvent is diethylene glycol monobutyl ether, and the anionic surfactant is dodecyl benzene sulfonic acidSodium salt, emulsifier OP-10 and alkali Na₂CO₃；

Further, 3-10% of diethylene glycol monobutyl ether, 1-10% of sodium dodecyl benzene sulfonate, 1-5% of OP-10 and Na₂CO₃6-10% of the weight percentage and the balance of water;

preferably, the content of diethylene glycol monobutyl ether is 5 percent, the content of sodium dodecyl benzene sulfonate is 2 percent, the content of OP-10 is 3 percent, and Na₂CO₃8% of content and 82% of water content;

the preparation method of the paste tank cleaning agent comprises the following steps:

at normal temperature, firstly dissolving alkali in water, stirring for dissolving, then adding a high-boiling-point alcohol ether solvent and an anionic surfactant for stirring, and finally adding an emulsifier for uniformly stirring;

further, the preferable components are selected, and the method for preparing the paste tank cleaning agent comprises the following steps:

at normal temperature, Na is firstly added₂CO₃Dissolving in water, stirring for dissolving, adding diethylene glycol butyl ether and sodium dodecyl benzene sulfonate, stirring, and finally adding OP-10 and stirring uniformly;

the cleaning method for cleaning the paste tank by adopting the cleaning agent comprises the following steps:

the method comprises the following steps that a Paste tank is automatically fed into a peripheral shredding machine and is decomposed into plastic fragments with the width of 2cm and the length of 25cm, the shredded plastic fragments are sent into a prewashing pool through a conveyor, the cleaning agent is added into the prewashing pool, residues attached to the plastic fragments are diluted and cleaned, the prewashed plastic fragments enter a magnetic separator, iron fragments are separated from the plastic fragments, the plastic fragments are sent into a crusher, the crusher further shears large plastic fragments into small plastic fragments with the particle size smaller than 2cm, the plastic fragments enter a powerful friction machine, the powerful friction machine peels the residues on the surface of a material again to remove the residues on the surface, the rubbed plastic enters a sinking and floating separation water tank, the crushed plastic fragments and impurities are separated and cleaned again, and the dehydrated plastic fragments are packaged as finished products for sale.

The invention has the beneficial effects that:

the paste can cleaning agent has a good cleaning effect on residual soldering paste of a soldering paste packaging barrel, can be recycled for multiple times on an industrial production line, and still has a good effect.

The paste tank cleaning agent is used for crushing and cleaning waste packaging barrels, the plastic product is improved from variegated color to oxidized white, the hue is good, and the income of a company is improved.

The preparation method for preparing the paste tank cleaning agent prevents emulsification in the preparation process.

The Paste tank enters the production line after being pre-cleaned, so that the cleaning agent of the whole cleaning line is prevented from being polluted, and the situation that the polluted other products are reduced to the reduction of the variegated selling price is avoided. After the cleaning agent is used in the pre-cleaning process, the cleanliness of a paste tank is improved by about 48%, the usage amount of the cleaning agent in the whole production line is reduced by 30%, the cleaning speed is improved by 30-40%, and the material delivery speed is also improved, so that the economic benefit is increased.

The cleaning method for cleaning the Paste tank has the advantages of simple steps, very clean cleaning of the Paste tank, short time and obvious effect.

Furthermore, the two-stage sinking-floating separation and high-speed dehydration process is arranged, so that the surface cleanliness of the resource product plastic fragments is ensured.

Detailed Description

The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

Example 1

Weighing 100g of Na at normal temperature₂CO₃Dissolving in 820g of water, stirring for dissolving, then adding 30g of dipropylene glycol butyl ether serving as a high-boiling-point alcohol ether solvent and 10g of sulfo fatty acid ester salt serving as a surfactant, stirring, finally adding 50g of emulsifier isoalcohol polyoxyethylene ether EH-6, and stirring uniformly.

Example 2

At normal temperature, 60g of KOH is weighed and dissolved in 780g of water, the mixture is stirred and dissolved, then 50g of diethylene glycol monobutyl ether which is a high-boiling-point alcohol ether solvent and 100g of secondary alkyl sulfonate which is a surfactant are added and stirred, finally 10g of emulsifier OP-10 is added and stirred uniformly.

Example 3

Weighing 80g of NaOH and dissolving in 740g of water at normal temperature, stirring and dissolving, then adding 100g of high-boiling-point alcohol ether solvents such as diethylene glycol ethyl ether and diethylene glycol butyl ether, 50g of surfactant sodium dodecyl benzene sulfonate, stirring, finally adding 30g of isomeric alcohol polyoxyethylene ether EH-6, and uniformly stirring.

Example 4

Weighing 30g of diethylene glycol monobutyl ether serving as a high-boiling-point alcohol ether solvent, 10g of sodium dodecyl benzene sulfonate serving as a surfactant, 50g of dosage of OP-10 serving as an emulsifier and Na at normal temperature₂CO₃100g of the raw materials and 810g of water are uniformly stirred at normal temperature.

Example 5

60g of Na is weighed at normal temperature₂CO₃Dissolving in 730g of water, stirring for dissolving, then adding 100g of diethylene glycol monobutyl ether serving as a high-boiling-point alcohol ether solvent and 100g of sodium dodecyl benzene sulfonate serving as a surfactant, stirring, finally adding 10g of emulsifier OP-10, and stirring uniformly.

Example 6

80g of Na is weighed at normal temperature₂CO₃Dissolving in 820g of water, stirring for dissolving, then adding 50g of high-boiling-point alcohol ether solvent diethylene glycol monobutyl ether and 20g of surfactant sodium dodecyl benzene sulfonate for stirring, finally adding 30g of emulsifier OP-10 for even stirring;

the above examples 1-6 were applied to actual production and the cleaning effect was recorded:

further, the cleaning step is:

firstly, automatically feeding a Paste tank into a peripheral shredder, decomposing the Paste tank into plastic fragments with the width of about 2cm and the length of about 25cm, and feeding the shredded plastic fragments into a prewashing pool by a conveyor; adding the cleaning agent into a pre-washing tank, diluting and cleaning residues attached to plastic fragments, feeding the pre-washed plastic fragments into a magnetic separator, separating iron fragments from the plastic fragments, feeding the plastic fragments into a crusher, further shearing large plastic fragments into small plastic fragments by the crusher, wherein the particle size of the small plastic fragments is less than 2cm, feeding the small plastic fragments into a powerful friction machine, stripping the residues on the surface of a material by the powerful friction machine again, removing the residues on the surface, feeding the rubbed plastic into a sinking-floating separation water tank, separating and cleaning the crushed plastic fragments and impurities again, and packaging the dehydrated plastic fragments as finished products for sale.

The plastic fragments of the Paste tank treated by the process are cleaned without residue.

Through the process, the cleaning rate of the solder paste on the plastic in the embodiment 6 is 100%, the plastic product is improved from variegated color to oxidized white, and finally the effects that the cleanliness of a paste tank is improved by about 48%, the usage amount of the cleaning agent in the whole production line is reduced by 30%, and the cleaning speed is improved by 30-40% can be achieved.

Therefore, the cleaning agent has a very obvious treatment effect on the Paste tank, saves the cleaning time and improves the cleaning cleanliness.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications and equivalents made within the spirit and principle of the present invention should be included in the protection scope of the present invention.