Latest Patent: An Electroplating Filter Machine

 Typically, electroplating filter machines transport liquids at temperatures ranging from -10°C to +80°C. Their filtration components and entire bodies are constructed from multiple materials including PP, PVDF, and PVC! Through rational formulation, molding, and processing, these acid-resistant filter machines combine the advantages of PP, offering exceptional corrosion resistance. They also feature high mechanical strength, resistance to aging, and no toxic decomposition, making them ideal equipment for conveying and filtering various strong and weak acids.

　　Primary Applications

　　Electroplating filter machines find broad application across industries including chemical processing, metallurgy, power generation, papermaking, food production, pharmaceuticals, and synthetic fibers. They are employed to transport corrosive or contamination-sensitive media.

Selecting the Right Electroplating Filter Machine

Selecting the appropriate acid/alkali-resistant filter machine has long been a major headache for the electroplating and chemical industries. Minor missteps can result in equipment damage, while more serious errors may cause accidents or even disasters.

According to Delphi statistics, approximately 80% of chemical equipment damage stems from strong corrosion. Therefore, material selection is paramount when selecting electroplating filtration equipment.

A common misconception is that stainless steel is a “universal material” suitable for any medium or environmental condition—a dangerous assumption. Below are key material selection points for common chemical media:

1. Sulfuric acid, chromic acid, nitric acid: As one of the most corrosive media, sulfuric acid is a widely used critical industrial raw material.

Corrosion effects vary significantly with concentration and temperature. For concentrated sulfuric acid (70%+ concentration, below 60°C), carbon steel and cast iron exhibit decent corrosion resistance. However, these materials are unsuitable for high-velocity sulfuric acid flow and should not be used for pump valves. Common stainless steels also have limited applicability in sulfuric acid environments. Consequently, valves for sulfuric acid electroplating filtration equipment are typically manufactured from high-silicon cast iron or high-alloy stainless steel. However, these materials present significant processing challenges and high costs, making them less favored.

Fluoroplastic alloys exhibit excellent sulfuric acid resistance. This patented material developed by the Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, was introduced by our company in 2010. We pioneered its use in manufacturing corrosion-resistant, high-temperature-tolerant, acid-alkali-resistant filtration equipment. Testing by the Chinese Academy of Sciences confirms no known chemical medium reacts with it, making PVDF (F46) a more economical choice.

    2. Alcohols, Ketones, Esters, Ethers! Common alcohol media include methanol, ethanol, ethylene glycol, and propanol. Ketone media include acetone and butanone. Ester media encompass various methyl and ethyl esters. Ether media include methyl ether, diethyl ether, butyl ether, etc. These generally exhibit low corrosivity, making standard stainless steel suitable for most applications. Specific selection should still be based on the medium's properties and relevant requirements. Additionally, note that ketones, esters, and ethers can dissolve many types of rubber, so avoid errors when selecting sealing materials. Recommended Selection: PP+GF Electroplating Filter

Acid/Alkali-Resistant Electroplating Solution Filter Selection

Electroplating filters are the most commonly used filtration equipment for conveying acidic media. Acid/alkali-resistant pumps are also widely adopted. Some manufacturers habitually use electroplating pumps to address leakage issues in electroplating filters.