Deoxidized aluminum-iron alloy block production die

Abstract

The utility model relates to a deoxidized aluminum iron alloy block production die which comprises a die frame, support plates are arranged at the two ends of the die frame respectively, two guide rods are fixedly connected between the two support plates, two sliding dies are connected to the guide rods in a sliding mode, the two sliding dies are provided with matched female dies, and electric heating bodies used for evenly heating the sliding dies are arranged in the sliding dies. A liquid injection hole and an exhaust hole are formed in the top of the sliding die and communicate with the female die. According to the deoxidized aluminum-iron alloy block production mold, the closed mold is matched with the mold for temperature control, so that the internal and external cooling rate of the metal block is reduced, and the situation that the surface of the metal block is quenched and solidified and cannot compensate an internal shrinkage cavity formed by internal volume shrinkage of the metal block is avoided.

Description

Technical Field

[0001] The utility model relates to metal smelting and casting technology, in particular to a production mould for deoxidized aluminium-iron alloy blocks. Background Art

[0002] The production method of alloy blocks is generally to melt the metal into liquid first, pour the molten metal liquid into an open mold, and then solidify it into a solid ingot of the desired shape. The internal and external temperature difference during the solidification process is generally more than 300 degrees. The thicker the metal block, the greater the internal and external temperature difference. If natural cooling or cooling by cooling water is used, the cooling rate of the center of the ingot is quite different from the cooling rate of the surface of the ingot. When the surface of the ingot has solidified, there is still a large amount of molten metal in the center of the ingot. The volume compensation of this part of the molten metal during the shrinkage process cannot be transferred to the surface of the ingot, and it is easy to produce shrinkage holes in the thickest part of the ingot and the middle part below the skin. As the ingot size continues to increase, this phenomenon is more serious, and the existence of shrinkage holes may affect the detection of metal quality, and when there is water accumulation in the shrinkage holes, it will also cause production accidents during use. It is necessary to improve the casting device of the metal ingot to eliminate the shrinkage holes in the metal ingot. Utility Model Content

[0003] The utility model aims to provide a deoxidized aluminum-iron alloy block production mold, which is used to solve the problem of shrinkage holes in metal ingots caused by excessive difference in internal and external cooling rates during the production of deoxidized iron-aluminum alloy blocks.

[0004] In order to solve the above problems, the utility model provides a deoxidized aluminum-iron alloy block production mold, including a mold frame, support plates are respectively provided at both ends of the mold frame, two guide rods are fixedly connected between the two support plates, two sliding molds are slidably connected to the guide rods, matching concave molds are provided on the two sliding molds, an electric heating body for uniformly heating the sliding molds is provided in the sliding molds, and an injection hole and an exhaust hole are provided on the top of the sliding mold, and the injection hole and the exhaust hole are connected to the concave mold.

[0005] The utility model provides a deoxidized aluminum-iron alloy block production mold which also has the following technical features:

[0006] Furthermore, a push rod is slidably connected to the sliding mold, and one end of the push rod is provided with a push block that matches the surface of the die. The sliding mold is provided with a groove that matches the push block. When the push block retracts into the groove, the integrity of the die is ensured. A fixing ring is fixedly connected to the middle part of the push rod, and a spring is sleeved on the push rod. The two ends of the spring are respectively fixedly connected to the fixing ring and the support plate, and the other end of the push rod can contact the support plate.

[0007] Furthermore, two push rods are arranged on the sliding form.

[0008] Furthermore, the net distance from the fixed ring to the push block is consistent with the dimension of the sliding mold along the direction of the guide rod.

[0009] Furthermore, a positioning ring is fixedly connected to the guide rod, and a limiting groove matched with the positioning ring is provided on the sliding mold. The net distance from the far end of the positioning ring to the closing point of the die is consistent with the depth of the limiting groove.

[0010] Furthermore, a discharge port is provided at the bottom of the mold frame.

[0011] Furthermore, a pneumatic device is fixedly connected to the support plate, and a pneumatic push rod of the pneumatic device is fixedly connected to the sliding mold.

[0012] The utility model has the following beneficial effects: the deoxidized aluminum-iron alloy block production mold described in the application adopts a closed mold in combination with mold temperature control, so that the cooling rate inside and outside the metal block is reduced, thereby avoiding the internal shrinkage holes formed by the rapid cooling and solidification of the metal block surface and the inability to compensate for the internal volume shrinkage of the metal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front cross-sectional isometric schematic diagram of a production mold for a deoxidized aluminum-iron alloy block according to an embodiment of the utility model;

[0014] Figure 2 This is a schematic axonometric view of a mold for producing deoxidized aluminum-iron alloy blocks according to an embodiment of the utility model.

[0015] (1-mold frame, 2-support plate, 3-guide rod, 4-sliding mold, 5-die, 6-electric heating body, 7-liquid injection hole, 8-exhaust hole, 9-push rod, 10-push block, 11-groove, 12-fixing ring, 13-spring, 14-positioning ring, 15-limiting groove, 16-discharging port, 17-pneumatic device) DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0017] like Figure 1 to Figure 2 In the embodiment of the deoxidized aluminum-iron alloy block production mold of the utility model shown, the deoxidized aluminum-iron alloy block production mold includes a mold frame 1, support plates 2 are respectively provided at both ends of the mold frame 1, two guide rods 3 are fixedly connected between the two support plates 2, two sliding molds 4 are slidably connected to the guide rods 3, matching concave molds 5 are provided on the two sliding molds 4, and an electric heating body 6 for uniformly heating the sliding molds 4 is provided on the sliding molds 4. The top of the sliding mold 4 is provided with a liquid injection hole 7 and an exhaust hole 8, and the liquid injection hole 7 and the exhaust hole 8 are connected to the concave mold 5.

[0018] Specifically, the slide mold 4 on the guide rod 3 is slid to the closing point of the die 5 so that the die 5 has no gaps, and the electric heating body 6 on the slide mold 4 is started to preheat the slide mold 4. After preheating to the set temperature, the smelted deoxidized aluminum-iron alloy liquid is injected into the die 5 from the injection hole 7 until the alloy liquid fills the entire die 5, and the electric heating body 6 is stopped to heat the slide mold 4 and the alloy block as a whole. Since the internal temperature of the slide mold 4 is relatively high, the temperature difference between the surface and the center of the alloy block and the cooling rate are reduced, thereby preventing the surface of the alloy block from solidifying too quickly. The solidification shrinkage of the center of the alloy block can transmit the stress to the surface of the alloy block to shrink together, thereby reducing the generation of internal shrinkage holes. When the alloy block is cooled to the internal solidification, the slide mold 4 is separated to both ends for demolding.

[0019] In one embodiment of the present application, preferably, a push rod 9 is slidably connected to the sliding mold 4, and one end of the push rod 9 is provided with a push block 10 that matches the surface of the die 5. The sliding mold 4 is provided with a groove 11 that matches the push block 10. When the push block 10 retracts into the groove 11, in order to ensure the integrity of the die 5, a fixing ring 12 is fixedly connected to the middle part of the push rod 9, and a spring 13 is sleeved on the push rod 9. The two ends of the spring 13 are respectively fixedly connected to the fixing ring 12 and the support plate 2, and the other end of the push rod 9 can contact the support plate 2, so that when the dies 5 on the two sliding molds 4 are closed, the push block 10 is affected by the tension of the spring 13 to retract the groove 11 so that the die 5 is complete and has no gaps. During demolding, the push block 10 is under the action of the elastic force of the spring 13, so that the push rod 9 pushes the solidified alloy block out of the die 5. When the spring 13 cannot demold the alloy block, the push rod 9 touches the support plate 2 to push the alloy block out of the die 5.

[0020] In one embodiment of the present application, preferably, two push rods 9 are provided on the sliding mold 4 to prevent the alloy block from being offset and stuck and unable to be demolded when the depth of the die 5 is deep.

[0021] In one embodiment of the present application, preferably, the net distance from the fixing ring 12 to the push block 10 is consistent with the dimension of the sliding mold 4 along the guide rod 3 , so that the push rod 9 can completely push the alloy block out of the die 5 .

[0022] In one embodiment of the present application, preferably, a positioning ring 14 is fixedly connected to the guide rod 3, and a limiting groove 15 adapted to the positioning ring 14 is provided on the sliding mold 4. The distance from the far end of the positioning ring 14 to the closing point of the die 5 is consistent with the depth of the limiting groove 15, so that the two sliding molds 4 can be tightly closed and avoid offside of the sliding mold 4.

[0023] In one embodiment of the present application, preferably, a discharge port 16 is provided at the bottom of the mold frame 1 so that the alloy block can flow into the next process after demolding.

[0024] In one embodiment of the present application, preferably, a pneumatic device 17 is fixedly connected to the support plate 2 , and a pneumatic push rod of the pneumatic device 17 is fixedly connected to the slide mold 4 for pushing and pulling back the slide mold 4 to complete the closing and demolding of the die 5 .

[0025] In summary, the deoxidized aluminum-iron alloy block production mold in the above embodiment of the utility model, specifically, starts the pneumatic device 17 to extend the pneumatic push rod to push the sliding mold 4 on the guide rod 3 to the closing point of the concave mold 5, at this time, the push block 10 on the push rod 9 has retracted into the groove 11, so that the concave mold 5 has no gap, and the concave molds 5 on the two sliding molds 4 form a closed mold, and the electric heating body 6 on the sliding mold 4 is started to preheat the sliding mold 4. After preheating to the set temperature, the smelted deoxidized aluminum-iron alloy liquid is injected into the concave mold 5 from the injection hole 7 until the alloy liquid fills the entire concave mold 5, and the electric heating body 6 is stopped to heat the sliding mold 4 and the alloy liquid is filled in the entire concave mold 5. The block is cooled as a whole. Due to the high temperature inside the sliding mold 4, the temperature difference between the surface and the center of the alloy block and the cooling rate are reduced, so as to avoid the surface of the alloy block solidifying too quickly. The solidification and shrinkage of the center of the alloy block can transmit the stress to the surface of the alloy block and shrink together, thus reducing the generation of internal shrinkage holes. When the alloy block is cooled to the internal solidification, the pneumatic device 17 is started to retract the pneumatic push rod and pull the sliding mold 4 to both ends. The alloy block is separated from one side of the sliding mold 4 and moves with the other sliding mold 4. Under the action of the spring 13, the fixed ring 12 is pushed to drive the push rod 9 to push the alloy block outward until the alloy block is completely pushed out of the concave mold 5, and the alloy block falls into the next process from the discharge port. This device adopts a closed mold with mold temperature control to reduce the cooling rate inside and outside the metal block, thus avoiding the internal shrinkage holes formed by the rapid solidification of the metal block surface and the inability to compensate for the internal volume shrinkage of the metal block.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A deoxidized aluminum-iron alloy block production mold, characterized in that: It includes a mold frame, and support plates are respectively provided at both ends of the mold frame. Two guide rods are fixedly connected between the two support plates. Two sliding molds are slidably connected to the guide rods. The two sliding molds are provided with matching concave molds. An electric heating body for uniformly heating the sliding mold is provided in the sliding mold. An injection hole and an exhaust hole are provided on the top of the sliding mold, and the injection hole and the exhaust hole are connected to the concave mold.

2. The deoxidized aluminum-iron alloy block production mold according to claim 1, characterized in that: A push rod is slidably connected to the sliding mold, and one end of the push rod is provided with a push block that matches the surface of the die. The sliding mold is provided with a groove that matches the push block. When the push block retracts into the groove, the integrity of the die is ensured. A fixing ring is fixedly connected to the middle part of the push rod, and a spring is sleeved on the push rod. Both ends of the spring are fixedly connected to the fixing ring and the support plate respectively, and the other end of the push rod can contact the support plate.

3. The deoxidized aluminum-iron alloy block production mold according to claim 2, characterized in that: Two push rods are arranged on the sliding mold.

4. The deoxidized aluminum-iron alloy block production mold according to claim 2, characterized in that: The net distance from the fixed ring to the push block is consistent with the dimension of the sliding mold along the direction of the guide rod.

5. The deoxidized aluminum-iron alloy block production mold according to claim 1, characterized in that: A positioning ring is fixedly connected to the guide rod, and a limiting groove matched with the positioning ring is provided on the sliding die. The distance from the far end of the positioning ring to the closing point of the die is consistent with the depth of the limiting groove.

6. The deoxidized aluminum-iron alloy block production mold according to claim 1, characterized in that: A discharge port is arranged at the bottom of the mold frame.

7. The deoxidized aluminum-iron alloy block production mold according to claim 1, characterized in that: A pneumatic device is fixedly connected to the support plate, and a pneumatic push rod of the pneumatic device is fixedly connected to the sliding mold.

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