Fuse Cap And Contact Soldering

1.Chemical composition of Fuse Cap and Contact Soldering:

Copper + Silver Cu + Ag: 99.90

Bismuth Bi: 0.001

Beryllium Sb: 0.002

Arsenic As: 0.002

Iron Fe: 0.005

Lead Pb: 0.005

Sulfur S: 0.005

2.Mechanical properties of T2 copper of Copper Outer Cap:

Density g/cm³: 8.9

delivery status:

(1)The copper plate which can be made Copper Slip Cap is in the (R) state, the thickness is 4-14mm, the tensile strength is Rm/Mpa (≥195) and the elongation after breaking is % (≥30); it is delivered in the shape of (M, Y1, Y2, Y, T), Thickness 0.3-10mm, tensile strength Rm/Mpa (≥205-350), elongation after break % (≥8-30), hardness HV: 60-120.

(2)Copper strip of Copper Slip Cap Fitting in (M, Y4, Y2, Y, T) state, thickness ≥0.2mm, tensile strength Rm/Mpa (≥195-350), elongation after break % (≥3-30), hardness HV: 60-120.

3.The application of red copper of Copper Outer Cap: 

Red Copper End Plate has excellent electrical conductivity, good thermal conductivity, good corrosion resistance and processing performance, and Copper End Caps Round can be welded and brazed. T2 copper of Copper End Cap Solder Fittings is mainly used as electrical, thermal and corrosion-resistant components.

Technical requirements for high temperature soldering Fuse Contact and Cap

Soldering L-type Termial of Fuse is a welding method that uses a low melting point metal solder to heat, melt, penetrate and fill the joint gaps of metal parts Copper Securing Lug (Fixing Slot). Because the solder is usually a tin-based alloy, it is so named.

1. Weldment surface treatment for Fuse Contact

The welding parts Contact for Fuse encountered in manual soldering iron welding are various electronic parts and wires. Unless the electronic components within the "insurance period" are used under large-scale production conditions, the welding parts Fuse Terminal Contact encountered under normal circumstances often require surface cleaning. Work, remove rust, oil, dust and other impurities that affect the welding quality on the welding surface. In manual operation, simple and easy methods such as mechanical scraping and alcohol and acetone scrubbing are commonly used.

2. Pre-soldering for Fuse Terminal

Pre-soldering is to wet the component leads or conductive welding parts to be soldered with solder in advance, which is generally also called tinning (Automotive) Fuse Terminal. It is accurate to call pre-soldering, because its process and mechanism are the whole process of soldering - the solder wets the surface of the soldered part Fuse Terminal Contact, and after the bonding layer is formed by the diffusion of the metal, the surface of the soldered part is "plated" with a layer of solder.

3. Do not use excessive flux for Fuse Link Contact

The right amount of flux is essential, but don't think more is better. Excessive rosin not only causes the workload of cleaning around the solder joints after welding Fuse End Blade Ferrules, but also prolongs the heating time (the rosin melts, volatilizes and takes away heat), reducing the work efficiency; and when the heating time is insufficient, it is easy to be mixed into the solder to form "Slag inclusion" defect; for the welding of Fuse Fuse End Tag, excess flux easily flows to the contacts, resulting in poor contact.

1,With a mature and stable metal futures market forecasting system.

2,Ex-works: China factory direct supply,we earn 5% profit and give the benefit to our customers;

3,Lead Time: 10-20days for samples/mass orders;

4,Industry Expert: Since 2010 professional in Fuse Link metal parts Copper/Brass Cap Contact solutions;

5,Successful Experience: Long-term cooperation with famous brands customers like EATON BUSSMANN/MERSEN/ABB/KEMET/BYD/SINOFUSE,we can supply Cost-reduction and Latest Trending Technology;

6,Group Power: Own Stamping Die,Stamping and Drawing Machines,In-die Riveting,Robot Laser Welding,Resistance Tin/Silver Brazing,etc;

1,Safety Certification

Bolt Connected Fuse End Blade Ferrules comply with EU RoHS directive, lead free and halogen free.

2,Quality System

We are approved with international quality and management system as IATF16949, ISO9001.

Fuse Cap and Contact Soldering packaged as delivered can be stored for one year from the date indicated on the packing label under the following conditions:

1）Temperature:-15 °C- +30°C (no condensation) 

2）Humidity :85% RH or less

3）Not exposed to corrosive gas or sea breeze 

4）No visible dust 

5)Not exposed to direct sunlight 

6)Load:No application of load that may cause deformation or degradation of the product.

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