product news/產ռ新聞


revealed a new central feeding concept which is only pos- sible when using inorganic binder technology because of the missing smoke and condensate formation. Tus, such a concept would not be possible with shell sand. Inorganic binders are often regarded as being more


critical in the shakeout process when compared to classi- cal organic binder systems. However, it has been shown at numerous customers that a combination of both continuous new product developments and adjustments in the shakeout process (like the right hammering and vibrating) could sig- nificantly improve the collapsibility so that nowadays even complex core geometries can safely be removed from the casting. Tis already happens every day in series production of cylinder heads and engine blocks at numerous customers all over the globe. Te sand reclamation of inorganic binders is generally


possible by a combination of a mechanical treatment (de- dusting to get rid of most of the binder) followed by a ther- mal treatment to “deactivate” the binder system. In this way, reclaimed sand can be obtained that is similar to the quality of new sand in terms of bench life of the sand mixture and strength values. In most cases, thermal reclamation is also a necessity for


the reclamation of used shell sand to burn off the organic residues on the sand grains. ■


Ӓ凝物ङ量ՕਈЊ释放ङ水量बҼ。 ॐ揭Դ造铸ً金轻马宝ङ特胡茨Һйѹ，近最 机无用҅֨有Ց念概થ，念概ো供心Иङ型新д 生ф要需ЉО֜（现实Օ۵Јӑەङ术技剂ৈড 无，时砂型ד用҅֨，此֜C 烟雾չӒ凝物）。A 法实现这य़概念。 ӑە常通，时比ब系ѽ剂合ড机有ङ统ѮЊ当 然 。键ҼО更И३过砂落֨剂合ড机无Оઍ，Ј 砂落չՇ开սф新ङ续连，明੮经已户客ךક，৲ 显љՕ合ুङ）动振չӠ锤ङे正ײ҆（整લ३过 Ҷ安љՕ，Јӑەя当֨得҅，性ঢ়收Օ֑改֪ੋ उ世֨。ਯ砂ङ杂זО更状形Ѿә除ԾИў铸ђ֪ 量批ङѽ缸չत缸ङמ每֨，֫现户客ךકङ֪՟ 。ӑەय़这生Շ常经，И३过ф生 理ה械机过通ਢ一，Јӑەङ剂合ড机无用҅֨ ȕ除આȔљ理ה热੧进ե然）剂合ডӣ部םԾ除（ ড合剂ѽ系活性ङ方式进੧砂Ӈ生。通过这य़方 生Ӈङ得ੂ，ઈ৲қچ强չ长时ҁ工ङ砂混就，式 砂ङૅ量ঝѷй新砂ङૅ量。A


C


砂掉烧，砂型דङ过用收֛֨，Јӑە数ךם֨ ■ 。ङ须必是Э收֛热，时物ऊ残机有ङЇট


Double Pouring and Fast Pour Can Increase Output, Productivity 率у生ո量у高提כৗ注浇速快Љ注浇Մ


Metalcasting facilities are constantly seeking new ways and opportunities to improve their casting quality, produc- tivity and savings—all at the same time. In response, DISA has developed a system that enables foundries to boost both quality and productivity, while improving yield, compared to other standard vertical molding processes. One of the key points is to increase the available pour-


ing time, as that remains one of the critical bottlenecks in today’s vertical metalcasting facilities. Two ways to increase pouring time are available from DISA: 1. DISA Fast Pour: Te fast pour system works with a


large pouring cup that enables the pouring unit to pour up to 10 kgs/ sec. Te actual casting is not poured at this speed, as a restriction in the gating system ensures the casting is poured with 3 to 5 kgs/ sec. 2. DISA Double Index: Tis system enables the DISA


vertical molding machine to perform a double index when pouring two molds simultaneously, achieving an additional 30% pouring time. Basically, double pouring can be done in two ways: 1. One pouring unit is equipped with two pouring


nozzles. Running with two pouring nozzles requires a more or less fixed mold size. It is possible to change the


գלਈ，遇机չ法方ङ新求ج断ЉЏѣ造铸 О。本成约ਭ并率效ф生高提、量ૅў铸֑改时 此，*/9'Ҹ՛ूՇд新系统，થ系统Њҿѕ标ӕङ 铸助帮לਈ，时գङ量ф高提֨，比बਫ工型造फָ 造Դ提高ૅ量չ生ф率。 ײ是Э这，间时注浇用Օ加增是就点一键ҼИҿ Д有һ՛Ҹ'9/*。一Ф颈瓶键Ҽङוગ型造फָя ：间时注浇加增לਈ式方用Օय़ 浇型םЊ统系注浇速快：统系注浇速快'9/*、


ਙ加增چ速注浇ङ置装注浇҅לਈ，用ҁգһ杯Ս 际实此֜，Ӳ限֨存ӄ统系注浇йं。IKY QMY چ速注浇ў铸дґे，注浇੧进چ速થљѫЉ并ў铸 QMY YKIਙ QMY YKIФ间。 ֨ 造फָ'9/*й用应统系થ：统系注浇Յ'9/*、


额现实，注浇੧进型铸ЗДث时գ统系注浇Յ，机型 ङ浇注时间。 י ：注浇Յ现实式方य़ДӧЈ过通ՕЇ本ׂ


March 2017 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 57


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