RESIN COMPOSITION FOR CASTING SANDPURPOSE: To provide a resin composition for casting sand, improving by using process curing water-soluble phenol resin as binder with organic ester.YOSHIDA AKIRA吉田 昭
A sand casting foundry composition reduces thermal defects that cause veining in metal parts cast from sand casting foundry shapes formed from the foundry composition. A plurality of foundry sand grains are mixed substantially uniformly with a plurality of shale particles, and a curable binder coats ...
摘要: PURPOSE: To optimize the strength of a mold and a core and to reduce the manufacturing cost by mixing granular refractory into binder consisting of three components to prepare the mixture, then hardening a resin in the binder thereby hardening the mixture. CONSTITUTION: In to the granular...
invention patent: \"composition binder to sand mixtures of melting and melting process. The present invention relates to a composition of binder to mixtures of sand for the casting casting cores and moulds which attaches to the mould or made early strength high, without any adhesion to the casti...
Die casting, permanent moulding, continuous casting and certain sand moulds (zircon) offer a selection of casting techniques for producing near net-shape castings. Factors discussed earlier in the chapter, for example, temperature distribution in the furnace, must be considered in austenitizing. In ...
The cement and red dune sand are then mixed with fine and course aggregate, water and a superplasticizer and cast after pouring into a mold cavity. Then within 24 hours of casting, the cast article is steam cured for 12 hours under atmospheric pressure, demolded and placed in an auto ...
Optimization of molding sand composition for quality improvement of iron castings In the iron casting industry, the quality of the sand mold is important for foundry manufacturers to achieve high quality iron castings. The aim of this re......
The mixture is permitted to stand for specified time and thereafter sulfur dioxide is passed therethrough for one second and compressed air for about five seconds, then a casting mold is formed. The pot life is considerably extended and the surface stability of sand is improved as compared to ...
PURPOSE:To greatly improve the strength of the casting mold produced from reclamation sand by using the binder compsn. for the curing mold of thin invention in the process for production of the sand mold for casting for molding a refractory granular material. CONSTITUTION:The process for productio...
A sand casting facing composition comprises a dry mixture of about 77% fine sand, 5% binder, 6% green system sand and 12% burned system sand. The fine sand is mulled with 5.8% wt/wt oil per total dry mixture and catalyst at about 0.5% wt/wt. Preferably, fine sand and binder are mul...