Introduction:Aluminum alloy die-casting parts, customized aluminum die-casting parts, aluminum alloy die-casting parts manufacturer - Hebei Quanyi Foundry. The performance characteristics of aluminum alloy die-casting parts are good room temperature mechanical properties, strong corrosion resistance, poor casting performance, large fluctuations in mechanical properties and wall thickness effects Our company supports customized drawings. Consultation hotline: 18333443399

Aluminum alloy die-casting partsThe performance characteristics are: good mechanical properties at room temperature; Strong corrosion resistance; The casting performance is relatively poor, with significant fluctuations in mechanical properties and wall thickness effects; During long-term use, the plasticity of the alloy may decrease due to aging, and even the die-casting parts may crack; The tendency of stress corrosion cracking in die-casting parts is also relatively high.Al-MgThe disadvantages of alloys partially offset their advantages, limiting their application to a certain extent.

Aluminum phosphating

By adoptingSEM,XRDDetailed studies were conducted on agents, fluorides, and other substances using methods such as potential time curves and membrane weight changesMn2+、Ni2+、Zn2+、PO4andFe2+The impact on the phosphating process of aluminum materials.

Research has shown that guanidine nitrate has the characteristics of good water solubility, low dosage, and rapid film formation, making it an effective agent for aluminum phosphating. Fluoride can form a film, increase film weight, and refine grain size; Make the phosphating film uniform, dense, and visually appealing;Zn2+When the concentration is low, it cannot form a film or the film formation is poor. WithZn2+As the concentration increases, the membrane weight also increases;PO4The content has a significant impact on the weight of the phosphating film, which can be improvedPO4The content increases the weight of the phosphating film.

Alkaline point solution polishing process for aluminum

A study was conducted on the alkaline polishing solution system, comparing the effects of corrosion inhibitors, viscometers, etc. on the polishing effect. A highly effective alkaline solution system was successfully obtained, and an additive was obtained that can reduce operating temperature, extend solution service life, and improve polishing effect. The experimental results indicate that:stayNaOHAdding appropriate additives to the solution can produce a good polishing effect. Exploratory experiments also found that using glucoseNaOHAfter DC constant voltage electrolytic polishing of the solution under certain conditions, the surface reflectivity of aluminum can reach90%However, due to the existence of unstable factors in the experiment, further research is needed. The feasibility of using DC pulse electrolytic polishing method to polish aluminum materials under alkaline conditions was explored. The results showed that the use of pulse electrolytic polishing method can achieve the leveling effect of DC constant voltage electrolytic polishing, but its leveling speed is slow.

Environmentally friendly chemical polishing of aluminum and aluminum alloys

Determine the development of phosphoric acid-A new environmentally friendly chemical polishing technology based on phosphoric acid, which aims to achieveNOxZero emissions and overcoming the quality defects of similar technologies in the past. The key to the new technology is to add all functional compounds to the base solution to replace nitric acid. Firstly, it is necessary to analyze the three acid chemical polishing process of aluminum, with a particular focus on studying the effect of nitric acid. The main function of nitric acid in aluminum chemical polishing is to suppress pitting corrosion and improve polishing brightness. Combined with pure phosphoric acid-Chemical polishing test in sulfuric acid, it is believed that in phosphoric acid-The substances added to sulfuric acid should be able to inhibit pitting corrosion, slow down overall corrosion, and have good leveling and brightening effects.

Electrochemical surface strengthening treatment of aluminum and its alloys

The process, properties, morphology, composition, and structure of anodic oxidation deposition of aluminum and its alloys in a neutral system to form a ceramic like amorphous composite conversion film were studied, and the film formation process and mechanism were preliminarily explored. The results of the process research indicate thatNa-2WO-4In a neutral mixed system, the concentration of film-forming agent is controlled to be2.5~3.0g/IThe concentration of the film-forming agent is1.5~3.0g/I，Na-2WO-4The concentration is0.5~0.8g/IThe peak current density is6~12A/dm~2By weak stirring, a complete, uniform, and glossy gray series inorganic non-metallic film layer can be obtained. The thickness of the film layer is5~10umThe microhardness is300~540HVExcellent corrosion resistance. This neutral system has good adaptability to aluminum alloys, and can form films well on various series of aluminum alloys such as rust proof aluminum and forged aluminum.