The zinc melting process transforms "industrial waste" into "recycled raw materials."

The zinc melting process is based on the principle that zinc and cobalt can form a low‑melting‑point alloy. At 900–1050°C, molten zinc penetrates into the scrap cemented carbide and reacts with the cobalt binder phase, thereby breaking down the alloy structure and causing the tungsten carbide (WC) skeleton to disintegrate. Subsequently, the zinc is removed by distillation under high vacuum at elevated temperatures, yielding a porous WC‑Co sponge material. After crushing, ball milling, and sieving, a recycled WC‑Co powder is obtained, which can be directly used for the re‑manufacturing of cemented carbide.

Dual-chamber horizontal vacuum furnace

• The front chamber serves as the heating zone, which accommodates the graphite boats containing the alloy and zinc. After the zinc melts, tlahecemented carbide scrap is submerged for thermal modification.
• The rear chamber serves as thecooling chamber, housing the zinc recovery crucible. The heating chamber and the coolingchamber are connected by a graphite conduit. Once the molten zinc in the heating chambervaporizes, it is transported through the graphite conduit to the cooling chamber where it
  condenses, thereby achieving the recovery and recycling of zinc.

After sales

• Installation, Commissioning And Acceptance

We do installation, commissioning and acceptance in buyer's plant.During the installation and commissioning period, the commissioning personnel shall be provided free of charge by the demander according to the staff standard.

The equipment shipped to the buyer, the seller received the buyer's notification, both within a week to carry the equipment out of the box together, then check the equipment and all components according to the packing list . Including equipment accessories, spare parts and special tools, attached manual and technical documents, etc. It can be installed after the acceptance check of equipment.
After installation and debugging, the equipment shall be accepted according to the technical accessories.

• Training

When taking-over the Furnace to the customer, We will give a staff training to customer. The operating personnel of the customer should join to commission,test the furnace, when installing at customer’s company.
This is practical operation training and practical maintenance training,
and our technical personnel will telling the basic principle,equipment maintenance knowledge,And the common fault handling measures.We can training 2 ~ 3 workers. ( Training how to maintenance and operating.)

• Warranty period

The warranty period of the equipment is 12 months, which starts from the date of installation and debugging of the supplier. Equipment failure happens, after-sales service personnel shall give solutions within 2 hours, after receiving the buyer's notification . If it is need to go to the site for treatment , operators dispatched by seller should arrive at the site within 48 hours after go aboard. In case of emergency,operators should arrive at the site within 48 hours after go aboard, and continue to make repairs until the fault is removed and the equipment returns to normal.