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目前,公司在全國的各省市自治區均配備了專業的售后服務人員,對所有產品在全國范圍內提供售后聯保服務,讓各地用戶放心地享受到后期服務,保證將客戶意見、故障報修等情況在第一時間內反饋到公司客戶服務部。


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提倡服務的全程化和全員化,將服務理念和服務意識貫徹到每一個員工的心中,通過專業化的售前服務,與客戶一體的售中服務,幫助客戶排除故障及解決問題的售后服務等全程服務體系,確保服務過程的完美質量,提高企業的競爭力。公司有專職的客戶服務部,另五大職能部門配合客服部,其中包括信息部、訂單部為不同的客戶解決不同的問題;客戶服務部還具備專業的知識庫和專業技術人員,可及時回答客戶的問題;

全力構造“直接反饋、同步響應、系統聯動”的客戶服務系統,各一線人員及時將客戶的問題即時傳輸給公司相關部門,各部門同時啟動支持解決程序,并在充分溝通的基礎上,第一時間制定整體解決方案,以最快的速度解決問題。

目前,公司在全國的各省市自治區均配備了專業的售后服務人員,對所有產品在全國范圍內提供售后聯保服務,讓各地用戶放心地享受到后期服務,保證將客戶意見、故障報修等情況在第一時間內反饋到公司客戶服務部。


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What problems should be paid attention to in the process of zinc alloy die casting?

Click: Time:2021-05-25 11:25:36

Zinc alloy die-casting is a kind of pressure-casting part. It uses a pressure-casting mechanical die-casting machine equipped with a casting mold to pour the heated liquid zinc or zinc alloy into the inlet of the die-casting machine, and then die-cast by the die-casting machine. Zinc parts or zinc alloy parts that are restricted by the shape and size of the mold. Such parts are usually called zinc alloy die castings.

    The characteristics of zinc alloy die-casting products are as follows:

    1. It has high specific gravity, weight and texture, and is stronger than plastic injection molding.

    2. Good casting performance, it can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth.

  3. Surface treatment can be performed: electroplating, spraying, painting.

  4. When melting and die-casting, it does not absorb iron, does not corrode the profiling, and does not stick to the mold.

   5. It has good mechanical properties and abrasion resistance at room temperature.

  6. It has a low melting point and melts at 385°C, making it easier to form than aluminum alloy die-casting.

   Problems that must be paid attention to in the process of zinc alloy die casting:   

  1. Poor corrosion resistance. When the impurity elements of lead, cadmium, and tin in the alloy composition exceed the standard, the casting will be aging and deformed, which is manifested as volume expansion, mechanical properties, especially plasticity, significantly decreasing, and even cracking after a long time.

Lead, tin, and cadmium have very little solubility in zinc alloys, so they concentrate on the grain boundary and become the cathode. The aluminum-rich solid solution becomes the anode, and in the presence of water vapor (electrolyte), it promotes intergranular electrochemical corrosion. Die castings are aged due to intergranular corrosion. 

  2, aging effect

The structure of zinc alloy is mainly composed of a zinc-rich solid solution containing Al and Cu and an Al-rich solid solution containing Zn, and their solubility decreases with the decrease of temperature. However, due to the extremely fast solidification rate of die castings, the solubility of the solid solution is greatly saturated when it reaches room temperature. After a certain period of time, this kind of oversaturation will gradually be relieved, and the shape and size of the casting will slightly change.  

   3. Zinc alloy die castings are not suitable for use in high and low temperature (below 0°C) working environments. Zinc alloy has better mechanical properties at room temperature. However, the tensile strength at high temperature and the impact performance at low temperature are significantly reduced.


What problems should be paid attention to in the process of zinc alloy die casting?
Zinc alloy die casting is a kind of pressure casting part. It uses a pressure casting mechanical die casting machine equipped with a casting mold to pour liquid zinc or zinc alloy into the inlet of th
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