CN201380270Y

CN201380270Y - Large-scale roller casting device

Info

Publication number: CN201380270Y
Application number: CN200920089307U
Authority: CN
Inventors: 马愉乐; 郭光辉; 张建中; 孟宪伟; 柴泉水; 马振东
Original assignee: Luoyang Xingrong Industry Co Ltd
Current assignee: Luoyang Xingrong Industry Co Ltd
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-01-13
Anticipated expiration: 2019-03-31

Abstract

The utility model discloses a large-scale roller casting device, belonging to a casting device. The upper surface of a base (7) is provided with a drainage port (5) which is corresponding to the middle part of a roller head box (8), and the end surfaces of the roller head box (8), a roller neck box (9) and a roller body box (11) are sequentially sheathed. The upper end of the roller body box (11) is sequentially provided with a riser box A (12) and a riser box B (14), and the inner sides of the riser box A (12) and the riser box B (14) are provided with roller head (16) cavities surrounded by firebricks (18). One side of the drainage port (5) of the base (7) is communicated with a horizontal pouring channel (6) and a straight pouring channel (4), and the peripheries of the horizontal pouring channel (6) and the straight pouring channel (4) are provided with sprue gate boxes (3). The large-scale roller casting device can efficiently overcome casting cracking, shrinkage hole and loosening, and has a wide application prospect.

Description

A kind of large-scale roller casting device

Technical field

The utility model belongs to a kind of casting device, specially refers to a kind of large-scale roller casting device.

Background technology

Roll is the strength member on steel rolling mill's rolling mill, and the pressure that produces when utilizing a pair of or one group of roll rolling rolls the stone roller steel.It mainly bears the sound load when rolling, wearing and tearing and influence of temperature variation; Existing roll kind can be divided into casting roll and forging roller by the moulding method.

Along with the steel rolling output of China continues to increase, constantly strengthen with respect to the demand of roll, and existing casting method has not satisfied the actual amount demand of steel rolling mill for roll yet

Summary of the invention

For addressing the above problem, the utility model has designed a kind of large-scale roller casting device, this large-scale roller casting device casting technique steady quality, can improve the casting progress of roll greatly, realize one-time formed purpose, for the crackle of foundry goods, shrinkage cavity, loosely all can effectively overcome, have a wide range of applications.

For achieving the above object, the utility model adopts following technical scheme:

A kind of large-scale roller casting device comprises the casing setting that is used to pour into a mould roll; What be used for the drainage molten metal straight, horizontally waters the setting of passage passage; Be used for the setting of heating arrangements again to the cast roll; The casing setting of described cast roll comprises base, roller head case, roll neck case, body of roll case and top refractory brick, upper side at described base is provided with draining hole, the draining hole respective roller of a base upper side case middle part, the end face socket successively of described roller head case, roll neck case, body of roll case, be provided with rising head case A and rising head case B successively in body of roll case upper end, described rising head case A and rising head case B inboard are provided with the casing that roller head cavity that refractory brick surrounds forms described cast roll; Straight, the horizontal passage setting of watering passage of described drainage molten metal is communicated with in draining hole one side of base and horizontally waters passage, directly water passage, describedly horizontally waters passage, directly waters the passage periphery and be provided with straight, the horizontal passage passage that waters that the down gate box-shaped becomes described drainage molten metal; Described heating arrangements again to the cast roll, the cavity upper end that forms at refractory brick is provided with graphite electrode, and middle part, described graphite electrode periphery parcel electroslag forms the heating arrangements again to the cast roll.

Described a kind of large-scale roller casting device is provided with tundish in the upper end of down gate case, and stopper rod is located at and directly waters the top, passway.

Owing to adopt aforesaid technical scheme, the utlity model has following superiority:

The utility model relates to a kind of large-scale roller casting device, and it is applicable to the cast steel roll monoblock cast process of net weight in the various models of single material, specification and material more than 50 tons.Adopt the utility model mold integral casting device, has the upper roll that refractory brick a constituted cavity that sets gradually base, roller head case, roll neck case, body of roll case, rising head case A and rising head case B from the bottom to top and in the rising head case, be provided with, running gate system of the present utility model can be divided into two parts up and down, its middle and upper part is an electrical heating riser head, the bottom is pouring-in cast, that is to say that the utility model running gate system is for making a bet and last notes integrated structure.The utility model is by the control to key process parameter, guaranteed the monoblock cast part product quality of large cast steel roll, the volume gas and the inclusion defect of roll have been avoided effectively, having guaranteed does not have the cold shut defective in the foundry goods, increased the feeding capacity of rising head, made the large cast steel roll not have rarefaction defect.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the roll perspective view of device processing described in the utility model;

In the drawings: 1, stopper rod; 2, tundish; 3, down gate case; 4, directly water passage; 5, draining hole; 6, the horizontal passage that waters; 7, base; 8, roller head case; 9, roll neck case; 10, the body of roll; 11, body of roll case; 12, rising head case A; 13, electroslag; 14, rising head case B; 15, graphite electrode; 16, roller head; 17, roll neck; 18, refractory brick.

The specific embodiment

A kind of large-scale roller casting device comprises the casing setting that is used to pour into a mould roll; What be used for the drainage molten metal straight, horizontally waters the setting of passage passage; Be used for the setting of heating arrangements again to the cast roll; The casing setting of described cast roll comprises base 7, roller head case 8, roll neck case 9, body of roll case 11 and top refractory brick 18, upper side at described base 7 is provided with draining hole 5, draining hole 5 a respective roller case 8 middle parts of base 7 upper side, the end face socket successively of described roller head case 8, roll neck case 9, body of roll case 11, be provided with rising head case A12 and rising head case B14 successively in body of roll case 11 upper ends, described rising head case A12 and rising head case B14 inboard are provided with the casing that roller head 16 cavitys that refractory brick 18 surrounds form described cast roll; Straight, the horizontal passage setting of watering passage of described drainage molten metal, be communicated with in draining hole 5 one sides of base 7 and horizontally water passage 6, directly water passage 4, describedly horizontally water passage 6, directly water passage 4 peripheries and be provided with straight, the horizontal passage passage that waters that down gate case 3 forms described drainage molten metal; Described heating arrangements again to the cast roll, the cavity upper end that forms at refractory brick 18 is provided with graphite electrode 15, the heating arrangements again that described graphite electrode 15 peripheral middle part parcel electroslags 13 form the cast roll; In the upper end of down gate case 3 tundish 2 is set, stopper rod 1 is located at and directly waters 4 mouthfuls of tops of passage.

At first base 7, roller head case 8, roll neck case 9, body of roll case 11, rising head case A12 and rising head case B14 are put from the bottom to top successively fixingly during use, then described refractory brick 18 is built into the cavity of roller head shapes; Draining hole 5 at base 7 is communicated with the horizontal passage 6 that waters, directly water passage 4, directly water passage 4 tops and connect tundish 2, pour into a mould simultaneously by the cavity on tundish 2 and refractory brick 18 tops when beginning to pour into a mould after being ready to, fill with the roller head 16 of bottom successively by molten metal, roll neck 17, utilize stopper rod 1 shutoff directly to water passage 4 behind the body of roll 10, the cavity of refractory brick 18 upper ends does not stop cast work until the cast of finishing whole roll, at this moment putting into graphite electrode 15 and around described graphite electrode 15, laying electroslag 13 in refractory brick 18 upper ends, by graphite electrode 15 breaker rolls heating 50～200 minutes, described roll secondary is melted, in melting process, eliminate crackle voluntarily, shrinkage cavity, defective such as loose.

Claims

1, a kind of large-scale roller casting device comprises the casing setting that is used to pour into a mould roll; What be used for the drainage molten metal straight, horizontally waters the setting of passage passage; Be used for the setting of heating arrangements again to the cast roll, it is characterized in that: the casing setting of described cast roll comprises base (7), roller head case (8), roll neck case (9), body of roll case (11) and top refractory brick (18), upper side at described base (7) is provided with draining hole (5), draining hole (a 5) respective roller case (8) middle part of base (7) upper side, described roller head case (8), roll neck case (9), the end face socket successively of body of roll case (11), be provided with rising head case A (12) and rising head case B (14) successively in body of roll case (11) upper end, described rising head case A (12) and rising head case B (14) inboard are provided with the casing that roller head (16) cavity that refractory brick (18) surrounds forms described cast roll; Straight, the horizontal passage setting of watering passage of described drainage molten metal, be communicated with in draining hole (5) one sides of base (7) and horizontally water passage (6), directly water passage (4), describedly horizontally water passage (6), directly water passage (4) periphery and be provided with straight, the horizontal passage passage that waters that down gate case (3) forms described drainage molten metal; Described heating arrangements again to the cast roll, the cavity upper end that forms at refractory brick (18) is provided with graphite electrode (15), and the peripheral middle part parcel electroslag of described graphite electrode (15) (13) forms the heating arrangements again to the cast roll.

2, large-scale roller casting device as claimed in claim 1 is characterized in that: in the upper end of down gate case (3) tundish (2) is set, stopper rod (1) is located at and directly waters passage (4) mouthful top.