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FAQ

is there any kind of solder or technique that can solder copper to aluminium? or is it just not possible!?

Yikes, this post is chock full of misleading information. Of course it's possible. How do I know? I do it 6-8 hours a day. Lead/tin and tin/copper solders bond to aluminum very well, they just don't bond to aluminum oxide. This soldering can be done by exposing fresh aluminum through scoring, scraping or sanding, then quickly soldering. Or use a purge box like we do - exclusion of oxygen solves the issue nicely, but an initial capital expense is required. Please - if you don't know, don't answer. It degrades the usefulness of the site.

Relevant question 5Excuse me, what's the meaning of your "deoiling effect"? And you answer two kinds of performance, my understanding is that the oil removal effect is not good, lead to aluminum volume is not neat, what is the difference between the two? Solution, thank you

when this phenomenon occurs in feeding occurs when you say the phenomenon, when parking tension shock or mutation, the inner drum contraction material, inner sleeve trace diameter decreases, emergency stop when the inertia torque increase, will influence on the oil film, and is the inner bag sleeve is not tight, causing the inner diameter decreases due to aluminum transfer from the inner ring to slide staggered, outer ring, the outer ring can be transferred to the volume of the material into a neat is not neat, not fully delivered appeared loose layer.

The export aluminum volume is CIF. If there is no insurance policy, how will the customs premium be collected?

The customs will not charge your premium the premium you can write but if you are a refund if there will be some impact because of the tax rebate minus the freight and insurance premium so you consider the premium but you can write less Never mind if you need shipping or shipping insurance declaration business can contact me oh

Yes, aluminum coils can be fabricated or machined. Aluminum coils are typically used in applications such as heating, ventilation, and air conditioning (HVAC) systems, automotive radiators, and electrical transformers. These coils can be fabricated or machined to meet specific requirements and dimensions. Fabrication of aluminum coils involves processes such as cutting, bending, and welding to create the desired shape and size. This allows for customization and adaptation to various applications. Machining, on the other hand, involves removing material from the aluminum coil using cutting tools such as lathes, mills, or CNC machines. This process is used to achieve precise dimensions, smooth finishes, and intricate designs. Overall, aluminum coils are versatile and can be fabricated or machined to suit different needs. The flexibility of aluminum as a material makes it a preferred choice for many industries, offering durability, lightweight properties, and excellent thermal conductivity.

Aluminum coils are typically stored and transported in a way that ensures their safety and minimizes damage. These coils are usually stored in a warehouse or storage facility, where they are protected from the elements and other potential hazards. The coils are often neatly stacked in a secure manner, with appropriate padding or spacers to prevent any movement or potential damage. When it comes to transportation, aluminum coils are usually transported using flatbed trucks or shipping containers. These vehicles are equipped with secure tie-downs and restraints to prevent any shifting or damage during transit. It is important to ensure that the coils are properly secured to prevent any accidents or mishaps. Additionally, some precautions are taken during transportation to protect the aluminum coils from any potential damage. For instance, the coils may be covered with protective materials, such as plastic or fabric, to prevent scratches or dents. In some cases, the coils may also be wrapped with stretch film or strapped with bands to provide additional protection. Overall, the storage and transportation of aluminum coils require careful handling and adherence to safety protocols. This ensures that the coils remain in optimal condition and are delivered to their destination without any issues.

my text says aluminium does not corrode much as a passive aluminium oxide layer is formed on it.Well other metals such as sodium adn potassium also form oxides. Why dont their oxides prevent further oxidation ?

sodium oxide and potassium oxide are water soluble aluminium oxide is not water soluble. the layer formed of oxide on the aluminium surface is coherent and adherent with no pores and stuck to the metal surface. the layer is also passive to most acids and alkalies except HCl and anti passive ions if present. sodium oxide and potassium oxide dissolve in any aqueous medium forming the corresponding alkalies NaOH and KOH leaving the fresh metal surface exposed to more corrosion. also the reaction of Na and K with aqueous media like water and acids is quite vigorous and fast unlike aluminium which is mu less reactive

Some common quality control measures for aluminum coil manufacturing include visual inspections to check for any defects or imperfections in the coils, dimensional measurements to ensure they meet the required specifications, chemical analysis to verify the composition and purity of the aluminum, mechanical testing to assess the strength and durability of the coils, and surface finish evaluations to ensure a smooth and uniform appearance. Additionally, manufacturers may implement statistical process control techniques to monitor and control the production process to consistently produce high-quality aluminum coils.

Yes, aluminum coils can be used in the production of aluminum cladding.