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公开(公告)号：EP1334786A1
公开(公告)日：2003-08-13
申请号：EP01965684.2
申请日：2001-09-17
申请人： J.F.T. Co., Ltd
发明人： MINEMOTO, Masayuki
CPC分类号： F04B9/133 , B22C9/065 , B22D17/2218
摘要： A mold cooling device comprises an air feeding and discharging circuit 22 which effects the driving by air of a pump section 1 for feeding a cooling liquid to a fluid flow passageway 65a formed in a mold 64 and the feeding of air to the fluid flow passage way 65a. Letting (Dx) be the outer diameter-corresponding dimension of the holed convex portion 53x of a cast article 64x, (D1) be the outer diameter of the pin section 65 of the mold 64, (t1) be the outer peripheral thickness of the pin section 65, and (T1) be -5.103 + (0.621 × Dx) - (1.068 × D1) + (3.61 × t1), the time (T) for feeding cooling liquid to the fluid flow passageway 65a after completion of the pouring of molten metal into the mold 64 is set so that the relation T1 - 0.5 seconds ≦ T ≦ T1 + 0.5 seconds is satisfied. Further, the central region of the bottom surface 67 in the bottom-closed cooling hole 66 formed in a mold 4 is formed with a flat surface portion 67a to which the front end opening in the inner pipe 62 is in opposed closely adjacent relationship, and the outer peripheral region of the flat surface portion 67a is formed with a curved surface portion 67b continuously extending from the flat surface portion 67a to the inner peripheral surface 66a of the bottom-closed cooling hole 66.
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公开(公告)号：EP1859877B8
公开(公告)日：2010-08-11
申请号：EP06714968.2
申请日：2006-03-01
申请人： J.F.T. Co., Ltd
CPC分类号： B29C35/007 , B22C9/065 , B22D17/2218
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公开(公告)号：EP1859877B1
公开(公告)日：2010-01-20
申请号：EP06714968.2
申请日：2006-03-01
申请人： J.F.T. Co., Ltd
CPC分类号： B29C35/007 , B22C9/065 , B22D17/2218
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公开(公告)号：EP1334786B1
公开(公告)日：2008-07-09
申请号：EP01965684.2
申请日：2001-09-17
申请人： J.F.T. Co., Ltd
发明人： MINEMOTO, Masayuki
CPC分类号： F04B9/133 , B22C9/065 , B22D17/2218
摘要： A mold cooling device comprising an air feeding/discharging circuit (22) for effecting the pneumatic drive of a pump section (1) which feeds cooling liquid to a fluid flow passageway (65a) formed in a mold (64), and the feeding of air to the fluid flow passageway (65a). Let Dx be the outer diameter-equivalent dimension of the perforated raised portion (53x) of a cast article (64x), D1 be the outer diameter of the pin portion (65) of the mold (64), t1 be the outer peripheral wall-thickness of the pin portion (65), and T1 be -5.103+(0.621xDx)-(1.068xD1)+(3.61xt1). Then the time T required for feeding the cooling liquid to the fluid flow passageway (65a) after completion of the flowing of molten metal into the mold (64) is set to satisfy the relation T1 -0.5 sec.
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公开(公告)号：EP1859877A1
公开(公告)日：2007-11-28
申请号：EP06714968.2
申请日：2006-03-01
申请人： J.F.T. Co., Ltd
CPC分类号： B29C35/007 , B22C9/065 , B22D17/2218
摘要： At the operation of a suction pump VP, a negative pressure is generated in a supply-side pipe line 4, a cooling passageway 2a of a mold 2, and a return-side pipe line 5. Cooling water stored in a water tank 3 is sucked by the negative pressure, flows from a first feed-water inlet 3a to the supply-side pipe line 4, flows through the supply-side pipe line 4, and enters the cooling passageway 2a of the mold 2. After the cooling water cools down the mold 2 while flowing through the cooling passageway 2a of the mold 2, it flows out to the return-side pipe line 5. On the other hand, at the operation of the suction pump VP, a negative pressure is also generated in a bypass pipe line 6. The cooling water stored in the water tank 3 is sucked by the negative pressure, flows from a second feed-water port 3b to the bypass pipe line 6, and enters the return-side pipe line 5 via the bypass pipe line 6.
摘要翻译： 在抽吸泵VP的操作下，在供给侧管路4，模具2的冷却通路2a和回流管路5中产生负压。储存在水箱3中的冷却水为 通过负压吸入，从第一给水口3a流入供给侧管路4，流经供给侧管路4，进入模具2的冷却通路2a。冷却水冷却后 在流过模具2的冷却通道2a的同时向下模具2，其流出到返回侧管路5.另一方面，在抽吸泵VP的操作中，也产生负压 旁路管线6.储存在水箱3中的冷却水由负压吸引，从第二供水口3b流向旁通管路6，经由旁通管进入回流管路5 第6行。
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