exothermic weld connection

7/27/2019 Exothermic Weld Connection

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AMIABLE IMPEX. Email [email protected] Tel. +91-22-28933996 / +91-9594899995 URL-www.amiableimpex.com

Exothermic Weld connection

Exothermic Weld connection, also known as exothermic bonding, thermite welding (TW), and

Thermit welding. There are many advantages of using Exothermic Weld connection. The most

important one being that the process produces a molecular joint and not just a mechanical one in between

the conductors. It is produced through a starting reactant which provides enough energy to activate thewelding reaction. This takes place quickly and safely inside a graphite mould. The mould is designed

specifically for a certain union depending on the elements to be welded and the joint type required. We

guarantees all types of joints, not only copper cable unions but also to weld tapes, brass metallic pieces,

stainless steel, steel ground rods covered with copper, etc. It is especially useful for joining dissimilar

metals.

Amiable Impex was the first Company in Mumbai to introduce and supply Exothermic Weld connection

Powder and Accessories. AI-Weld Exothermic welded electrical connections supply from us will never loosen,

corrode or increase in resistance. We are one of the largest importer ofExothermic Weld connection in

India. Due to our Superior and Best Quality we are able to sell our product to Railways Contractors, Rail

Metro, Telecommunications, Earthing and Lightning Installers Industries, as well as to Electrical Suppliers

etc.
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What does Exothermic Weld connection means?

Exothermic Weld connection System is a very effective and cost efficient method of making electrical

connections in high quality which includes Large Connection or Small Connection. It is a simple self-

contained system that uses the high temperature reaction of powdered copper oxide, aluminium and other

required chemical and materials, within a mould to form permanent electrical connections.

For more details please visit our website: http://exothermic-welding.com/what-is-exothermic-weld.html

Features of Exothermic Weld connection:

Superior electrical conductivity to the conductors themselves.

Does not corrode, oxidize or degrade with time and is resistant to galvanic coupling.

Able to withstand repeated electrical discharges.

Never increases its resistance.

Has greater mechanical and squeezing resistance than the conductors themselves.

What and Which Metal can be Weld through Exothermic Weld connection ?

The process ofExothermic Weld connection is a method of making electrical connections from Copper to

Copper or Copper to Steel and it can join any Metals to Metals like Bronze, Galvanized metals and Stainless

steel etc , in which no outside source of heat or power is required.

What are the Accessories Requires for Exothermic Weld connection Joints?

1) Graphite Mould

2) Exothermic Weld connection

3) Steel Disc

4) Ignite Powder / Starting Powder

5) Cleaning Brush Set (Soft, Hard and File Card Brush)

6) Flame Torch

7) Mould Handle

8) Hand Gloves

9) Flint Gun

10) Sealing Compound

For more details please visit our website: http://exothermic-welding.com/exothermic-weld-accessories.html

What is the Process for Exothermic Weld connection OR How the Metal is Welded by Exothermic

Weld connection ?

In Exothermic Weld connection Process, the following are the steps

Step 1 - The two conductors that is to be joined are placed in the weld cavity and than the steel disc islocated in the base of the crucible in the Graphite Mould.

Step 2 - After the disc is placed in the Mould, AI-Weld Exothermic Weld connection Material is poured

down into Graphite Mould followed by Starting Powder

Step 3 - Some Ignite Powder should also be sparkled on the Mouth of Mould and than ignited by Flint Gun.

The process of igniting the particles creates extremely high heat i.e upto 1400 degree Celcius and

produces Exothermic Reaction which also melts the Steel Disc and then the Exothermic Weld connection

flows into the weld cavity thus filling any available space and completes the weld. In weld cavity the molten

copper alloy partially melts the conductors. The molten copper alloy gets cooled and forms a fusion

weld which solidify before it is removed from the mould.

This entire process takes only upto 10 to 15 seconds to complete. Then the mould is ready for the

next weld after a brief cleaning with a brush. Exothermic welded connections produce a permanent
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connection, superior in performance to any known mechanical or pressure type surface-to-surface contact

connector. Due to the fact that the connection produced is a molecular bond so an exothermic welded

connection will not loosen and there will be increase in resistance over the lifetime of the installation.

The Process is very Simple and hence a Laymen can do the Job Work by just seeing the process once.

Hence one need to ensure that the process should be undertaken carefully and proper instruction should be

maintained by the Laymen.

For more details please visit our website: http://exothermic-welding.com/exothermic-weld-process.html

What are the Advantages or Features of Weld done from Exothermic Weld connection

Molecular bonding of Copper to Copper and other metals can be made Ensure excellent conductivity in the electrical grounding

Exothermic Weld connection Joint ensures permanent molecular bond

Longer life span

Not required any external power or heat source required

Safe operation, without professional technology knowledge, easy to learn

Very simple tools and equipment that results in execution of high efficiency

Will not deteriorate with age and will never loosen or corrode etc

Application

It is ideal for the following application:

- Earthing joints,

- Strip joints,

- Solid wire joints,

- Rod joints,

- Cable joints,

- Lug connections,

- Cable and Rail joints,

- Continuity bonding and track circuiting, etc.

Hence this Exothermic Weld connection is used in Grounding & bonding and lightning protection

in Power plants , Substations , Transmission line , Refinery , Industrial plant , Commercial plants ,

Telecommunication tower , Building , Housing etc.

Type of Joints possible from Exothermic Weld connection:
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1) Horizontal Joints

2) Vertical Joints

3) Straight Joints

4) Cross Joints

5) Overlap Joints

6) L shape Joints

7) T shape Joints

According to the customers specification and requirement any shape Joints is Possible through our

innovative design of Graphite Moulds.

Overview:

In Exothermic Weld connection, aluminium dust reduces the oxide of another metal, most commonly iron

oxide, because aluminium is highly reactive. Iron(III) oxide is commonly used:

Fe2O3 + 2 Al 2 Fe + Al2O3

The products are aluminium oxide, free elemental iron, and a large amount of heat. The reactants are

commonly powdered and mixed with a binder to keep the material solid and prevent separation. Commonly

the reacting composition is 5 parts iron oxide red (rust) powder and 3 parts aluminium powder by weight,

ignited at high temperatures. A strongly exothermic (heat-generating) reaction occurs that via reduction and

oxidation produces a white hot mass of molten iron and a slag of refractory aluminium oxide. The molten

iron is the actual welding material; the aluminium oxide is much less dense than the liquid iron and so floats

to the top of the reaction, so the set-up for welding must take into account that the actual molten metal is

at the bottom of the crucible and covered by floating slag.

Other metal oxides can be used, such as chromium oxide, to generate the given metal in its elemental form.

Copper thermite, using copper oxide, is used for creating electric joints in a process called cadwelding:

3 CuO + 2 Al 3 Cu + Al2O3

Thermite welding is widely used to weld railway rails. The weld quality of chemically pure thermite is low

due to the low heat penetration into the joining metals and the very low carbon and alloy content in thenearly pure molten iron. To obtain sound railroad welds, the ends of the rails being thermite welded are

preheated with a torch to an orange heat, to ensure the molten steel is not chilled during the pour. Because

the thermite reaction yields relatively pure iron, not the much stronger steel, some small pellets or rods of

high-carbon alloying metal are included in the thermite mix; these alloying materials melt from the heat of

the thermite reaction and mix into the weld metal. The alloying beads composition will vary, according to

the rail alloy being welded.

Exothermic Connection between Cable to Cable Joint

The AiWeld Exothermic Weld connection is the great quality product that helps to have permanent Joint

between Copper Cables to Copper Cable. Our Exothermic Powder works best for Copper Cable to Copper

Cable Connection.

Infact through our continuous innovative development and Quality Improvement Passion our AiWeldExothermic Weld connection can not only joint Copper to Copper Cable but also helps to Joint any Cables

made from any Metals. Following are the Joint Connection Possible from our AiWeld Exothermic Weld

connection.

Exothermic Connection between Cable to Cable JointThe AiWeld Exothermic Weld connection is the great quality product that helps to have permanent Joint

between Copper Cables to Copper Cable. Our Exothermic Powder works best for Copper Cable to Copper

Cable Connection.
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Infact through our continuous innovative development and Quality Improvement Passion our AiWeld

Exothermic Weld connection can not only joint Copper to Copper Cable but also helps to Joint any Cables

made from any Metals. Following are the Joint Connection Possible from our AiWeld Exothermic Weld

connection.

As referred by the Image, one can imagine that our Exothermic Weld connection can joint Copper Cable

to Copper Cable in any Shape. The following shape possibilities is as below:

1) Horizontal Joint of Copper Cable to Copper Cable Connection

2) Vertical Joint of Copper Cable to Copper Cable Connection

3) Overlap Joint of Copper Cable to Copper Cable Connection

4) Cross Joint of Copper Cable to Copper Cable Connection

5) T Shape Joint of Copper Cable to Copper Cable Connection

6) L Shape Joint of Copper Cable to Copper Cable Connection

7) Y Shape Joint of Copper Cable to Copper Cable Connection
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8) Parallel Shape Joint of Copper Cable to Copper Cable Connection etc.

As per the Customer Specification and Requirement any shape Joint is Possible by designing the

Graphite Mould accordingly.

Amiable Impex is the only Company in India that offer Quality AiWeld

Exothermic Weld connection at reasonable rate and ensures delivery within

10 to 15 days in India. So Get high quality products at quickest lead time with

fast response time. Full Customer Satisfaction. Our Products are tested and

approved by CPRI Govt. Body and we are also certified by ISO 9001:2008

Our Other products in Exothermic Weld connection / Thermit Weld

Regd. Office

S.no Table Of Content

1) Exothermic Weld connection

2) What is Exothermic Weld connection

3) Exothermic Weld connection Accessories

4) Exothermic Weld connection Process

5) Exothermic Connection Joint

6) Exothermic related Certificates

7)Exothermic Weld connection Connection between Cable to CableConnection

8) Exothermic Weld connection joint for cable to ground rod connection

9)

Exothermic Weld connection joint for Copper Cable to Copper Strip / GI

Tape Connection

10) Exothermic Weld connection joint for Cable to Steel Connection

11)Exothermic Weld connection joint for Copper Strip / GI Strip to GroundSteel Plate Connection

12) Exothermic Weld connection joint for Rod to Steel Connection

13)Exothermic Weld connection joint for Ground Rod to Ground RodConnection

14)Exothermic Weld connection joint for Copper Strip to Ground RodConnection

15)Exothermic Weld connection joint for Copper Strip to Copper StripConnection

16) Exothermic Weld connection joint for Copper Strip to Rebar Connection

17)Exothermic Weld connection joint for Copper Cable to ReBar

Connection

18) Exothermic Weld connection joint for Rod To ReBar Connection

19) Exothermic Weld connection joint for Rebar to Rebar Connection
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AMIABLE IMPEX.

101/A, Surya Darshan, Pai Nagar,

Borivali(W), Mumbai 400092. India.

Phone: 022-28933996 / 022-28957101

Fax: 022-28957102

Admin -

501/A, Surya Darshan, Pai Nagar,

Borivali(W), Mumbai 400092. India.

Phone: 022-28933996 / 91-9594899995

MAULIK SHAHE-mail: [email protected]

Mob :+ 91- 9594899995

UJJWAL SHAH

Email: [email protected]

Website - www.exothermic-welding.com
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exothermic weld connection

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