mold wash

mold wash

[′mōld ‚wäsh]
(metallurgy)
An aqueous or alcoholic suspension or emulsion used to coat the surfaces of a mold cavity.
References in periodicals archive ?
Core and mold wash and physical mold packing were eliminated, cutting full shift man hours for both processes, plus wash drying time.
Ceramic media improves casting quality, reduces production time
* Mold wash penetration is on the order of 0.100-0.125 in.
Converting a sand system: one case study shows how converting a steel casting facility's olivine sand system to a phenolic-based chromite/silica system required planning, cooperation and tight controls
(Normally, the temperature of the mold wash in ambient conditions will be upwards of 20F [10C], colder than ambient as a result of evaporative cooling.)
Testing mold coating dryness using infrared: residual volatiles in alcohol-based mold coating can result in gas related defects, but infrared imaging can verify a mold wash is evenly dry
Mold, core, mold wash and even sleeve permeability must be considered when assessing the exposure of the liquid metal inside the riser sleeve to the atmospheric air.
Improving blind riser efficiency: providing blind risers with adequate passage to atmospheric air and a hotter top metal front will increase your casting yield and reduce your energy costs
It also includes two mold wash systems, drying ovens, core setting, two automatic mold closing systems, a mold pouring and cooling system, two shakeouts and a 30 ton/hr.
Harrison's super size nobake conversion: instead of gradually adding nobake molding lines and phasing out its existing green sand lines, Harrison Steel opted to install the second largest automated nobake molding line in North America and convert all molding over in 18 months
Mold preparation, such as applying mold wash, venting, setting chaplets and cores, and actual closing of the mold are completed on the finish line with less effort.
Nobake expansion without physical expansion
Then, the mold surface can be treated using mold wash or other traditional foundry techniques to improve surface finish.
Prototyping for direct metal casting: data to castings in 12 hours. (Product Innovations)
The mold halves pass through an infrared drying oven, which ensures curing of the bonded sand and heats the mold wash surface to prevent the water-based wash from penetrating too deeply.
A tale of two nobake start-ups
ITW/BCK electric infrared/forced-air mold wash dryers are designed for rapid drying of water-based refractory coatings on sand molds.
Mold Wash Dryer Provides Energy Savings for Ferrous Foundry
The appearance issue was handled by mold temperature, injection pressure and control of mold wash.
Permanent molders share successes, production techniques
Changes in mold wash, binders, or even the way the parts are molded can impact cleaning times.
Maximum blastcleaning machine efficiency starts with the basics
Mold wash - a good thick layer of mold wash is critical.
Voices from the V-Process
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