浸滲劑是由幾種無機(jī)物或幾十種有機(jī)物配制而成的液態(tài)物質(zhì)，用以密封出現(xiàn)微孔缺陷的鑄件或粉末冶金件。分為無機(jī)浸滲劑和有機(jī)浸滲劑。

剛開始使用的是無機(jī)浸滲劑進(jìn)行浸滲處理（Metal Impregnation），后來研制出有機(jī)浸滲劑，因諸多優(yōu)點(diǎn)故很多企業(yè)使用有機(jī)浸滲劑取代了無機(jī)浸滲劑，有機(jī)浸滲劑經(jīng)過了3次升級換代，現(xiàn)在廣泛使用的是2代和3代的有機(jī)浸滲劑，因無機(jī)浸滲劑的浸滲效果差，所以使用大幅減少，但因為淘汰浸滲設(shè)備以及浸滲劑成本高，所以國內(nèi)以及一些發(fā)展中國家的一些企業(yè)還在使用無機(jī)浸滲劑，隨著社會經(jīng)濟(jì)的發(fā)展，將逐步減少使用無機(jī)浸滲劑。

無機(jī)鑄件浸滲補(bǔ)漏劑（無機(jī)鑄件密封膠）比有機(jī)鑄件浸滲密封劑更加耐熱，所以某些情況下還不能以有機(jī)鑄件浸滲補(bǔ)漏劑取代無機(jī)鑄件密封膠。浸滲劑其它非正式的稱呼很多如鑄件補(bǔ)漏劑 鑄件補(bǔ)漏液等，因為很多廠家沒有接觸到浸滲補(bǔ)漏，所以有很多別稱還比如 鑄件補(bǔ)漏膠、鑄件密封劑、鑄件密封膠等。

浸滲工藝流程:

浸滲設(shè)備在壓鑄件及粉末冶金件制造過程中，由于氣體殘留、晶體收縮等原因，不可避免地形成大量微孔、砂眼、裂紋，微孔滲漏給機(jī)器設(shè)備的使用帶來隱患，即使用于無壓力要求的用途也可能因電鍍，涂漆及其它表面處理時電鍍液，酸液等進(jìn)入零件內(nèi)部導(dǎo)致內(nèi)部腐蝕，縮短了零件使用壽命，因微孔的存在使表面噴漆、電鍍等形成氣泡或凹凸不平。

在生產(chǎn)線上應(yīng)用浸滲技術(shù)已經(jīng)成為行業(yè)共識。目前，眾多的企業(yè)已將浸滲作為一道必不可少的工序排進(jìn)工藝文件。浸滲是通過真空加壓的方法，使浸滲膠液浸入鑄件疏松、氣孔等缺陷內(nèi)部，經(jīng)過固化，填充鑄件微孔，從而解決泄露問題，達(dá)到密封承壓的目的。

The infiltrant is a liquid substance prepared from several inorganic substances or dozens of organic substances, and is used to seal castings or powder metallurgy parts with microporous defects. Divided into inorganic infiltrating agent and organic infiltrating agent.

In the beginning, inorganic impregnants were used for impregnation treatment (Metal Impregnation), and organic impregnation agents were later developed. Due to many advantages, many companies replaced inorganic impregnation agents with organic impregnants. 3 times of upgrading, and now the 2nd and 3rd generation organic infiltrators are widely used. Due to the poor infiltration effect of inorganic infiltrators, the use is greatly reduced. However, due to the elimination of infiltration equipment and the high cost of infiltrators, Therefore, some enterprises in China and some developing countries are still using inorganic impregnating agents. With the development of social economy, the use of inorganic impregnating agents will be gradually reduced.

Inorganic casting impregnation sealant (inorganic casting sealant) is more heat-resistant than organic casting impregnation sealant, so in some cases, organic casting impregnation sealant cannot be used to replace inorganic casting sealant. There are many other informal names of impregnating agents, such as casting leak repairing agent, casting leakage repairing liquid, etc. Because many manufacturers have not been exposed to impregnation and leakage repairing, there are many other names such as casting leakage repair glue, casting sealant, casting sealant, etc.

Impregnation process:

During the manufacturing process of die casting and powder metallurgy parts, infiltration equipment inevitably forms a large number of micropores, blisters and cracks due to gas residues, crystal shrinkage and other reasons. For applications without pressure requirements, it may also cause internal corrosion due to the entry of electroplating solution, acid solution, etc. into the parts during electroplating, painting and other surface treatment, shortening the service life of the parts, and the existence of micropores causes surface painting, electroplating, etc. to form bubbles or uneven.

The application of impregnation technology on the production line has become an industry consensus. At present, many companies have included infiltration as an essential process in the process documents. Impregnation is a method of vacuum pressure, so that the impregnating glue liquid is immersed in the casting loose, pores and other defects. After curing, it fills the micropores of the casting, so as to solve the leakage problem and achieve the purpose of sealing and bearing pressure.

 臺州亨泰浸滲密封技術(shù)有限公司技術(shù)部