What Is Pin Brazing?

Introduction

Pin brazing is a method used to make electrical connections to metal structures such as pipelines and other metallic structures. It is a safe and easy method that uses electric-arc silver soldering with a portable pin brazing unit. The unit includes a hollow brazing pin filled with silver solder and flux. This method is commonly used for cathodic protection or electrical grounding.

Pin Brazing
Pin Brazing

Hot It Works

The brazing process is a highly versatile method of joining metal parts together, utilizing a specialized brazing alloy and flux to create a strong, low resistance bond.

This method can be used on a wide range of materials and in various positions, making it ideal for a variety of applications such as insulated pipes, cable connections, and offshore pipelines.

The equipment required for brazing, often included in a “pin brazing unit”, makes it a fast and easy method to use. In cathodic protection systems, brazing is particularly useful for attaching anode cables and measuring posts.

The use of threaded pins with nuts or cable lugs allows for even more flexibility and ease of installation. Overall, brazing is a reliable and efficient method used in a wide range of industries, from construction to manufacturing, due to its versatility and strong bond.

Benefits Of Pin Brazing

Pin brazing is a method of joining two metals by heating them with a silver alloy, which melts and bonds the two pieces together. There are several benefits to using pin brazing, including:

  1. Weather resistance: Pin brazing works in all weather conditions, including rain and snow, which means that it can be used in any location, regardless of the weather.
  2. Safe for operators: The process does not melt the steel in the pipe with the cables, only the silver alloy, which makes it safe for operators to use.
  3. Quick and easy: The process is quick and automatic, taking only 2 minutes in total for a complete bonding. The process involves 3 simple steps of surface grinding, press the gun button, and it’s ready.
  4. No special knowledge required: The process does not require any special knowledge of the operator, making it easy to use for anyone.
  5. Long-term storage: Pin brazing units and consumables can be stored for several years without taking damage, and there are no special requirements for storing them.
  6. Low-temperature: Pin brazing operates at a low temperature, which does not damage the coating on the inside of the pipeline.

Sum Up

Pin brazing is a fast, easy, and safe method of joining two metals that can be used in any location regardless of weather conditions, does not damage the steel or coating in the pipeline, no special knowledge is required, and can be stored for a long time without taking damage.

FAQS

What is the pin brazing technique used for?

The pin brazing technique is typically used for joints between insulated pipe sections, the installation of sacrificial anodes, connection to measuring cables, and bonding zinc bracelets to offshore pipelines.

What are the advantages of using pin brazing?

Pin brazing offers a number of advantages, including precision, flexibility and the ability to join dissimilar materials. Additionally, it can also be used in tight spaces and can be used to join materials that are difficult to weld.

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