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Cleaning antirust agent for diesel engine casting body and preparation method thereof

The invention relates to a rust inhibitor and a technology for a diesel engine, which is used in the field of cleaning and preparation of a rust inhibitor for a foundry body of a diesel engine. , The effect of strong anti-rust ability

Active Publication Date: 2015-02-04
DALIAN SANDAAOKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of metal cleaning agents, including solvent-based, water-based active type, water-based lye type, etc., but the cleaning process is basically two steps of cleaning→two steps of rinsing→one step of rust prevention, the process is complicated and the efficiency is low
Although some jet cleaning machines are used to achieve jet cleaning, it is still difficult to effectively clean and prevent rust on the surface of the diesel engine casting body and the oil in the complex cavity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Raw materials and mass percentages used are as follows:

[0037] Agent A 30%

[0038] Agent B 50%

[0039] Sodium tripolyphosphate 3%

[0040] Normal temperature spray degreasing non-foaming special surfactant 6%

[0041] Silicone defoamer 10%

[0042] Isothiazolinone 1%

[0043] The raw material and mass percent of described A agent are as follows:

[0044] Phytic Acid 2%

[0045] Normal temperature steel surface treatment agent 10%

[0046] Ammonium bicarbonate 3%

[0047] Triethanolamine 3%

[0048] Polyethylene glycol 3%

[0049] Silicone defoamer 0.6%

[0050] water balance

[0051] The raw materials and mass percentages of the B agent are as follows:

[0052] Sodium carbonate 2%

[0053] Sodium nitrite 10%

[0054] Triethanolamine 10%

[0055] water balance.

[0056]The raw materials used are all commercially available products, and the water can be tap water. The special surfactant (QYL-20) for degreasing and non-foaming at room temperature is a p...

Embodiment 2

[0064] Raw materials and mass percentages used are as follows:

[0065] Agent A 40%

[0066] Agent B 40%

[0067] Sodium tripolyphosphate 7%

[0068] Normal temperature spray degreasing non-foaming special surfactant 3%

[0069] Silicone defoamer 9.5%

[0070] Isoxazolinone 0.5%

[0071] The raw material and mass percent of described A agent are as follows:

[0072] Phytic Acid 6%

[0073] Normal temperature steel surface treatment agent 8%

[0074] Ammonium bicarbonate 1%

[0075] Triethanolamine 7%

[0076] Polyethylene glycol 5%

[0077] Silicone defoamer 1.2%

[0078] water balance

[0079] The raw materials and mass percentages of the B agent are as follows:

[0080] Sodium carbonate 4%

[0081] Sodium nitrite 20%

[0082] Triethanolamine 16%

[0083] water balance.

[0084] The preparation method is carried out as follows:

[0085] a. Prepare Agent A:

[0086] Add the calculated amount of water into the stainless steel reaction kettle first, start the a...

Embodiment 3

[0092] Raw materials and mass percentages used are as follows:

[0093] Agent A 35%

[0094] Agent B 45%

[0095] Sodium tripolyphosphate 4%

[0096] Normal temperature spray degreasing non-foaming special surfactant 5.2%

[0097] Silicone defoamer 10%

[0098] Isoxazolinone 0.8%

[0099] The raw material and mass percent of described A agent are as follows:

[0100] Phytic Acid 4%

[0101] Normal temperature steel surface treatment agent 9%

[0102] Ammonium bicarbonate 2%

[0103] Triethanolamine 5%

[0104] Polyethylene glycol 4%

[0105] Silicone defoamer 1%

[0106] water balance

[0107] The raw materials and mass percentages of the B agent are as follows:

[0108] Sodium carbonate 3%

[0109] Sodium nitrite 15%

[0110] Triethanolamine 13%

[0111] water balance.

[0112] The preparation method is carried out as follows:

[0113] a. Prepare Agent A:

[0114] First add the calculated amount of water into the stainless steel reaction kettle, start the ag...

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Abstract

The invention discloses a cleaning antirust agent for a diesel engine casting body and a preparation method thereof. The agent comprises the following raw materials, by mass, 30-40% of an agent A, 40-50% of an agent B, 3-7% of sodium tripolyphosphate, 3-6% of a special surfactant for bubbleless normal temperature spray degreasing, 8-12% of an organosilicon antifoaming agent and 0.5-1% of isothiazolinone, wherein the agent A comprises, by mass, 2-6% of phytic acid, 8-10% of a normal temperature steel surface conditioning agent, 1-3% of ammonium bicarbonate, 3-7% of triethanolamine, 3-5% of polyethylene glycol, 0.6-1.2% of the organosilicon antifoaming agent, and the balance water; and the agent B comprises, by mass, 2-4% of sodium carbonate, 10-20% of sodium nitrite, 10-16% of triethanolamine, and the balance water.

Description

technical field [0001] The invention relates to a diesel engine casting body cleaning and antirust agent and a preparation method thereof, in particular to a diesel engine that can realize single-machine single-process spray cleaning at normal temperature, has the functions of decontamination and rust prevention on the surface of metal materials, and has no corrosiveness Casting body cleaning antirust agent and preparation method. Background technique [0002] Metal cleaning is an essential process for metal products before finishing such as spraying and electroplating. There are many types of metal cleaners available, including solvent-based, water-based active, water-based lye, etc., but the cleaning process is basically two steps of cleaning→two steps of rinsing→one step of rust prevention, which is complicated and inefficient. Although there is also a jet cleaning machine to realize jet cleaning, it is still difficult to effectively clean and rust-proof the oil stains o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/24
Inventor 潘德顺张礼让单秀峰郑心岩张晓琳尚志勇李撼哲
Owner DALIAN SANDAAOKE CHEM
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