-550x550.jpeg "Liquid Borax - 1 lt")
Sıvı boraks, kaynak (özellikle sert lehimleme / brazing ve demir dışı metallerin kaynağı) işlemlerinde akı (flux) olarak önemli bir rol oynar.
Aşağıda, nasıl kullanıldığı, ne işe yaradığı ve hangi metallere uygun olduğu detaylıca anlatılmıştır ????
⚙️ 1. Temel Görev: “Akı (Flux)” Olarak Kullanım
Kaynak yapılırken metal yüzeyler ısındığında oksit tabakası oluşur.
Bu oksit tabakası, metalin birbirine kaynamasını engeller.
???? Sıvı boraksın görevi, bu oksitleri çözmek ve yüzeyleri temiz tutmaktır.
Böylece kaynak metali (örneğin pirinç teli veya lehim alaşımı), ana metalin yüzeyine düzgün bir şekilde yayılır.
???? 2. Areas of Use
| Type of Use | Explanation |
|---|---|
| Brazing | Pipe connections, joining metals such as brass, copper, bronze. |
| Silver brazing | Precision metalworking (e.g. air conditioning pipes, jewelry). |
| Non-ferrous metal welding | As a surface cleaner for aluminium and copper alloys. |
| Casting and blacksmithing works | To keep the surface clean during melting, to separate the slag. |
???? 3. How to Use Liquid Borax?
a. Preparation
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The surface to be welded must be clean and oil-free .
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Liquid borax is usually used as a borax solution mixed with water or in the form of commercial flux .
b. Application
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Liquid borax is applied to the area to be welded by brush or dipping method.
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As the metal is heated, the liquid borax melts and forms a transparent, glass-like layer .
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This layer prevents oxygen from coming into contact with the metal.
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The weld metal (e.g. silver solder wire) is added by melting.
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Borax remains as slag (flux residue) after welding — this residue is then removed with a wire brush or acid.
???? 4. Advantages
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It prevents oxidation.
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Improves solder flow (ensures that it spreads evenly over the metal).
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Keeps the welding area clean.
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It creates a more solid and smooth weld seam.
⚠️ 5. Things to Pay Attention to
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Excessive use of borax may leave vitrification or slag residue in the weld area .
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Cleaning must be done after the process (wire brush, acid bath, etc.).
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Protective glasses and gloves should be used during application .
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Dry borax (powder form) is generally preferred for iron and steel welding ; the liquid form is more suitable for brass, copper and silver soldering .
???? Example 6: Use in Rice Welding
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Clean the parts.
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Apply liquid borax to the joint surface.
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Heat it — the borax will melt and turn into glass.
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Complete the weld by melting the solder wire.
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Once cooled, wipe away any residue.
The result: A shiny, strong and uniform solder joint is achieved.
???? 7. Briefly — The Role of Liquid Borax in Welding
| Feature | Duty |
|---|---|
| Oxide solvent | Cleans metal surfaces |
| Protective layer | It cuts off contact with oxygen |
| Flow enhancer | Facilitates the spreading of solder metal |
| Slag former | Collects the melted oxides and separates them from the surface |