Air Handling Units, Copper, C18150

Welding wheel is electrode wheel of welding seam wheel machine. Seam welding machine is similar to spot welding machine, but different are that electrode of spot welding machine is rod and welding is instantaneous discharge. Electrode of seam wheel machine is two rounds of electrode and electrode discharge is continuous or interval discharge.

Chromium Zirconium Copper general introduction

 Chromium zirconium  Alloy C18150 has good thermal and electrical conductivity. More than 400 types of these copper alloys are available, but C18150 is highly preferred since it has high strength and wear resistance at elevated temperatures. C18150 is used extensively for cap-style resistance welding electrodes. It can provide less sticking and resist deformation for much longer than its copper-chrome counterpart in some specific situations.

The chemical composition of C18150 is 1% chromium, 98.85% copper, and 0.15% zirconium. The addition of Zirconium to chromium copper improves creep resistance at high operating temperatures and reduces sticking of electrodes to the work during spot welding of galvanized or coated materials. The physical copper properties of C18150 include a density of 8.89 grams per cubic centimeter.

TYPICAL USES OF CHROMIUM ZIRCONIUM

STRESS RELAXATION

Chromium zirconium is a unique copper alloy that's able to decrease stress under constant strain. It's typically used with steel bolts in turbine casting, which must be straightened and typed.

MACHINING

Machining includes a variety of processes in which a raw piece of material is cut into a desired final shape and size by a controlled material-removal process. The machinability rating of C18150 is 30% which is moderate. The use of a cutting tool with a chip breaker is recommended.

MATERIAL PROPERTIES OF C18150

The C18150 copper alloy has a combination of properties as below:

Tensile strength: 220-540 N/mm2

0.2% Proof strength: 100-440 N/mm2

% Elongation: 35-5

Hardness (HV): 55-175

Electrical conductivity: 80% IACS

Thermal conductivity: 300 W/moC (compared to copper 394 W/moC)

FABRICATION PROPERTIES

The most common fabrication properties of C18150 are bending, cold heading, and machining. The machinability rating of C18150 is 20. The fabrication properties of C18150 Copper can be categorized as either good, not recommended, fair, or excellent. The properties are as follows:

Good for:

Soldering

Brazing

Gas shielded arc welding

Excellent for:

Capacity for being cold worked

Fair for:

Butt welding

Not recommended for:

Oxyacetylene welding

Coated metal arc welding

Spot Welding

Seam Welding

 Carton box on wooden tray

 Port of Loading: Shanghai

We are a group company which focus on welding solution. We have three subsidiaries:

Nanjing Dianjin Welding and Cutting Equipment Co.,LTD

Nanjing FST Welding Technology Co.,LTD

XY(Nanjing) Industry Equipment Co.,LTD.

Our company is  located in the South of Nanjing City, Jiangsu Province, China which was established in 2003 with more than 20 years manufacturing experience in this field.

We have ISO900I Certificate and have been sold in lots of countries all around the world and gained good reputation widely with excellent quality.  In order to meet customers’ requirements and improve product quality, our company has already realized mechanical processing numerical control automatization production, and been committed to manufacturing products with best quality.

Our company adopts modern management mode and devotes itself to new high performance design and production of welding&cutting equipments, with continuous technique advantages innovation.

Q1: What does your factory produce?

A: We produce and export all kind of welding consumables, welding torch, resistance welding gun and welding working station.

Q2: How can you gurantee quality?

A: Pre-production samples can be provided before mass production and 100% inspection before shipment.

Q3:What is your terms of payment?

A:T/T  or L/C at sight. We’ll show you the photos of the products and packages before the shipment.

Q4:Can you produce according to the samples?

A:Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q5: Where do your factory located?

A: Our factory located in No.16 Songyuan North Road, Chunxi Street, Gaochun, Nanjing, Jiangsu Provice, China

Q6: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ;

A:2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.