This is because the resistivity to electron transport in metals at room temperature originates primarily from scattering of electrons on thermal vibrations of the lattice, which are relatively weak in a soft metal. The maximum permissible current density of copper in open air is approximately 3.1×106 A/m2 of cross-sectional area, above which it begins to heat excessively.
Copper Chromium is the primary copper alloy used for resistance spot and seam welding. This alloy achieves good hardness and electrical conductivity through a combination of heat treatment and cold work.
It is widely utilized for electrodes, holders, adaptors, as well as numerous electrical applications where resistance to deformation at high temperature is required or when higher mechanical properties than C11000 are required.
Packing and shipping:
- Products covered with boards are used for transportation protection.
- All products will be packed in solid wooden packaging.
- Each carton with good support and reinforcement.
- Take photos of container loading and seal the container.
- Fast transportation speed. Let the customer know every step.
FAQ:
Q1. What are your company's main products ?
A1: Our main products are stainless steel, carbon steel , galvanized and Aluminum products and etc.
Q2: Are you a manufacturer?
A:Yes, we are manufacturers. We have our own factory and our own company. I believe we will be the most suitable supplier for you.
Q3: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.
Q4: Do you have quality control system?
A: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.
Q5: How do you ship the goods and how long does it take to arrive?
A: For samples, We usually deliver by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.Airline and sea shipping also optional. For mass products, ship freight is prefered.
Q6: How long is your delivery time?
A: Generally it is 7days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.
Q7: Can I get some samples?
A: We are glad to provide samples to you.
Q8: What is your after-sale service?
A: We provide after-sale service and offer 100% guarantee on our products.
