Sludge Recycling

1. Machine Tool Recyclers Scintillating scrap carbide recycling prices; next day payment 2005 Granart Road, Sugar Grove IL 60554 Phone: 630-964-5030 Email: mtri@machinetoolrecyclers.com Website: www.machinetoolrecyclers.com

2. Ship by Truck Shipping tungsten carbide by truck How it works: Day 0: Phone for a price; written confirmation and terms emailed. Day 1: FedEx truck scheduled for pickup at your convenience; bill of lading and other paperwork emailed or faxed to you. 2 & 3: FedEx picks up and delivers shipment. Locations west of the Rockies, Canada or Mexico add a day or two. We use FedEx Trade Networks to broker your shipment across the border. Day 4: Contents weighed and inspected. Day 6: You receive the check in the mail. Day 7: Slack day, just in case. Shipment √ list: Heavy duty pallet, easily sufficient for the load. Load centered, balanced and secured. Containers filled below capacity; weight even. Each container’s lid tightly secured. FedEx shipping label attached; gross, tare and net clearly marked. The four buckets below are arranged symmetrically, each 75% full. The lids are hammered shut. The buckets have been strapped and shrink wrapped around, (the belt and suspenders theory); 1 dimension. The buckets have been covered with plywood and strapped across both ways; dimensions 2 and 3.

3. Spark Testing Carbide & HSS Iron M2 M1 T15 lots of long white sparks 24" or longer; feels “soft/light" Not worth shipping; sell locally narrow orange sparks no forks wide orange sparks no forks narrow orange sparks with forks

4. How to use the spark test Not sure what material you've got? A spark test can answer your questions. Get out your grinding wheel and use these photographs as a guide. Tungsten carbide, has a rockwell hardness of 88 to 90, second only to diamonds; its specific gravity is 16, almost as heavy as gold, twice as heavy as high speed steel. Tungsten carbide is very heavy and very hard; very hard is the basis of this test: If your scrap can only throw a very short, orange spark, it's tungsten carbide. If it sparks red/orange, 12 to 18 inches long, it is worth shipping to us. if it sparks long and white, it is not. We have listed specifications for many high speed steels on our hss spec page Carbide red, very short, 2" spark feels “heavy” (very dense) M42 wide orange sparks with forks

5. Carbide Soft Scrap (Sludge/Swarf) Tungsten carbide grinding sludge Can you tell the quality of the carbide soft scrap without sending it to a lab? No, you cannot. A niton gun reading is likely to be way off But because tungsten carbide sludge is so heavy, you can estimate the quality of the carbide sludge by its weight. Very heavy is very good: not so heavy is not so good. Soft scrap quality guesstimater <— 55 gallon drum almost full 2000 lbs = 40 lbs / gallon very good 1200 lbs = 24 lbs / gallon might be ok, depends on moisture and other elements 600 lbs = 12lbs / gallon not so good; water = 8 lbs / gallon

6. New Endmills & Drills We carry one brand of round tools and one brand of inserts (web pages in process). Our variable helix, variable pitch, "GorillaMills" are made from the highest transverse rupture strength, nano-grain tungsten carbide substrate available. These mills are engineered to run at 50 to 150 percent faster through all materials, at a greater chip load, than our very good, Standard sub- micrograin—also made in the USA—mill. In fact, we present different speed/feed recommendations because of this difference Several companies manufacture end mills that vary helix and pitch to reduce harmonic vibration. The varying helix and pitch is a patent protected design. Most of them use a very good design patented by a Japanese company. Gorilla, however, holds its own US patents. We have found that its improved designs usually produce 5 to 10 percent better performance than the other variable helix/pitch endmils, especially in harder materials like Inconel and titanium.

7. Recycling tungsten carbide & hss scrap