Closed side mold water spot cooling apparatus, manufacturing method and use thereof

Abstract

The present invention provides a water spot cooling apparatus, a water spot cooling method for casting a mold, a method for manufacturing the water spot cooling apparatus and use of the water spot cooling apparatus. The technical solution of the present invention has the following advantages: spot cooling of multiple spots can be realized on each side mold by using only one water inlet pipeline, thereby saving the water cooling pipeline and facilitating field installation; the water inlet and outlet are integrated on a main body, thereby facilitating field implementation; the whole apparatus is easy to process, convenient to maintain, and low in manufacturing cost; and it is not restricted by the product structure and facilitates promotion.

Claims

1. A water spot cooling apparatus, comprising: a spot cooling apparatus main body, comprising a backwater cross hole which is parallel to a surface of a mold and passes through the spot cooling apparatus main body, a through hole perpendicular to the surface of the mold, and fastener through holes located around the through hole for fastening screws, the backwater cross hole being in fluid connection with the through hole; a water inlet branch pipe passing through the through hole and installed in the spot cooling apparatus main body towards the surface of the mold, a water inlet connecting joint connected at a tail end of the water inlet branch pipe, a sealed connecting ballhead connected at a tail end of the water inlet connecting joint, and a water inlet manifold connected at a tail end of the sealed connecting ballhead, the outer diameter of the water inlet branch pipe being less than the inner diameter of the through hole; a backwater joint connected with the backwater cross hole, and the backwater cross hole and the backwater joint being connected via a sealing gasket; and a fastening screw used for fixing the spot cooling apparatus main body to the surface of the mold.

2. The apparatus according to claim 1, wherein the fastener through holes comprise three fastener through holes for fastening the fastening screws around the through hole; wherein, the fastener through holes are distributed to form a 120 angle with respect to each other.

3. The apparatus according to claim 1, wherein the backwater cross hole is fluidly connected with the through hole via a backwater vertical hole and a backwater inclined hole.

4. The apparatus according to claim 1, wherein both ends of the backwater cross hole are sealed by means of plug welding or plugs.

5. A water spot cooling method for casting a mold, comprising: processing blind holes on the locations of a mold wall where cooling is required, the blind holes corresponding to the locations of the water inlet branch pipes of the apparatus according to claim 1; installing and fixing the apparatus according to claim 1 onto the mold wall, and inserting the water inlet branch pipes into the blind holes; and introducing cooling water into the water inlet manifold of the apparatus, the pressure of the cooling water being 0.4 to 0.6 atm and the temperature of the cooling water being 25 to 35 C.

6. A method for manufacturing the apparatus according to claim 1, comprising: processing a spot cooling apparatus main body; processing a water inlet branch pipe, welding the same together with the water inlet connecting joint, and then screwing the water inlet connecting joint into the spot cooling apparatus main body; welding the sealed connecting ballhead together with the water inlet manifold; installing the spot cooling apparatus main body on the mold and fixing the same with a screw; butting the water inlet head pipe, together with the sealed connecting ballhead to the water inlet connecting joint; installing the backwater joint on the spot cooling apparatus main body; and butting the water inlet and outlet joints of a rack to the water inlet and outlet joints of the spot cooling apparatus.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Embodiments of the present invention will be described in detail below with reference to the accompany drawings, wherein:

(2) FIG. 1: a schematic diagram of a closed backwater side mold water spot cooling apparatus of embodiment 1 of the present invention, wherein: 1spot cooling apparatus main body, 2water inlet connecting joint, 2through hole, 3water inlet branch pipe, 4water inlet manifold, 5backwater vertical hole, 6backwater inclined hole, 7backwater cross hole, 8backwater joint, 9sealing gasket, 10fastening screw, 10fastening screw through hole, 11plug welding seal, 12scaled connecting ballhead.

(3) FIG. 2: a 3D model schematic diagram of the closed backwater side mold water spot cooling apparatus of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1: Manufacture of the Water Side Mold Spot Cooling Apparatus

(4) A closed backwater side mold water spot cooling apparatus, comprising a spot cooling apparatus main body 1, a water inlet pipeline system and a backwater pipeline system. The structure of the apparatus is as shown in FIG. 1.

(5) A water inlet branch pipe 3 of a predetermined length is manufactured, and is welded together with the water inlet connecting joint 2, and then the water inlet connecting joint 2 is screwed into the spot cooling apparatus main body 1. The sealed connecting ballhead 12 is welded together with the water inlet manifold 4. The spot cooling apparatus main body 1 is installed on the mold and is fixed with a screw 10. The water inlet manifold 4, together with the sealed connecting ballhead 12 is butted to the water inlet connecting joint 2. The backwater joint 8 is installed on the spot cooling apparatus main body 1. The water inlet and outlet joints of the rack are butted to the water inlet and outlet joints of the spot cooling apparatus. The closed backwater side mold water spot cooling apparatus fully absorbs the advantages of side mold cooling by a wind-cooled mold, and can realize the spot cooling of castings merely by processing a number of blind holes at the locations on the mold where cooling is required, thereby getting rid of the restrictions of the product structure to the spot cooling implementation.

Embodiment 2: The Cooling Effect of the Water Side Mold Spot Cooling Apparatus

(6) The water side mold spot cooling apparatus of embodiment 1 is installed on a low-pressure cast side mold of a hub; the method is as follows:

(7) (1) Blind holes are processed on the locations of the mold wall where cooling is required, the blind holes correspond to the locations of the water inlet branch pipes 3 of the apparatus according to any one of claims 1 to 5; and

(8) (2) The apparatus according to any one of claims 1 to 5 is installed and fixed onto the mold wall, and the water inlet branch pipes 3 are inserted into the blind holes.

(9) Moreover, thermocouples are installed at the thermal centers to measure temperature of the side mold.

(10) After the installation is completed, cooling water is introduced into the water inlet manifold 4 of the apparatus, the pressure of the cooling water is 0.5 atm and the temperature of the cooling water is 25 C.

(11) The following data is obtained by observation after cooling for 1.5 minutes:

(12) time: 0 minute; temperature: 470 C.;

(13) time: 1.5 minutes; temperature: 370 C.;

(14) In view of the above, the water side mold spot cooling apparatus of the present invention can effectively reduce the temperature of the side mold in a desired manner.