CN203002769U

CN203002769U - Length base structure to be rolled of rolled steel plate

Info

Publication number: CN203002769U
Application number: CN 201220721706
Authority: CN
Inventors: 严扬鹏; 蔡常青; 廖家盛
Original assignee: Fujian Sangang Minguang Co Ltd; Fujian Sangang Group Co Ltd
Current assignee: Fujian Sangang Minguang Co Ltd; Fujian Sangang Group Co Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2013-06-19
Anticipated expiration: 2022-12-24

Abstract

A length base structure to be rolled of a rolled steel plate comprises a length base. The length base structure is characterized in that three detection blind holes and two detection blind holes with a diameter of fai 12 millimeters and a depth of 15 millimeters are respectively drilled on edges of two sides of the upper surface of the length base in a length direction, and the included angle of an axis of the detection blind holes and the upper surface of the length base in a length direction is 45 degrees. The distance between neighboring detection blind holes is 350-450 millimeters, a middle detection blind hole of the three detection blind holes on one side is disposed on a transverse central line of the upper surface of the length base in a length direction, and the two detection blind holes on the other side are symmetrical with the transverse central line of the upper surface of the length base in a length direction as the centerline. The length base structure has the advantages that before the length base is rolled, detection holes are drilled on two and three length bases, and then the length bases are rolled into detection steel plates for detecting and judging in case that a whole batch of length bases are disposed as wastes.

Description

A kind of chi blank structure to be rolled of rolled plate

Technical field:

The utility model relates to the chi blank structure to be rolled of steel plate strand, particularly a kind of rolled plate.

Background technology:

Strand is produced by conticaster, the steel billet with certain appearance and size.Produce the technological process of strand shunts through tundish for the molten steel of large bag at conticaster, flowed into by middle water-coating port and have in the water mold of certain cavity shape bottom through-hole, rely on flow blockage device (in advance it being penetrated crystallizer before production) first to block molten steel, in the molten steel crystallizer after preliminary coagulation forming, cut into multiple length through casting stream guide section, a flame cutting machine, the secondary flame cutting machine cuts into the scale base, and is rolling for the medium plate mill.

Because might there be impurity in strand at casting process, there is the water-cooled uneven phenomenon at the water-cooled crystallization process, all can crack, thus the plate quality after influence of rolled.If this phenomenon detected before the chi base is rolling, can make the quality judgement of this batch strand, select after judgement to melt down or to change small dimension into rolling.But be all rolling rear detection in producing at present, if having problem often whole batch rolling invalid, cause waste.

Summary of the invention:

The purpose of this utility model is to overcome defects, and a kind of chi blank structure to be rolled of rolled plate is provided.

The utility model scheme is: comprise the chi base, it is characterized in that: being drilled with respectively three, two diameters on the corner angle of the upper surface both sides of chi base length direction is that Φ 12mm, the degree of depth are the detection blind hole of 15mm, detects blind hole axial line and chi base length direction upper surface angle and is 45 and spend; Adjacent detection blind hole spacing is 350-450mm, and the interstitial hole that three of sides detect blind hole is on the cross central line of length direction upper surface, and two of opposite sides detect the blind hole orientation take the cross central line of length direction upper surface as symmetrical.

The utility model has the advantage of: before the chi base is rolling, after first two, three chi bases brills upward being detected the hole, is rolled into the detection steel plate and detects judgement, in order to avoid time chi base calcellation by the gross.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the top view of Fig. 1.

The specific embodiment:

The utility model structure comprises the chi base, it is characterized in that: being drilled with respectively three, two diameters on the corner angle of the upper surface both sides of chi base 2 length directions is that Φ 12mm, the degree of depth are the detection blind hole 1 of 15mm, detects blind hole 1 axial line and chi base 2 length direction upper surface angles and is 45 and spend; Adjacent detection blind hole 1 spacing is 350-450mm, and the interstitial hole that three of sides detect blind hole 1 is on the cross central line of length direction upper surface, and two of opposite sides detect blind hole 1 orientation take the cross central line of length direction upper surface as symmetrical.

After chi base 2 boring is rolling, estimate detecting steel plate, if find index aperture apart from the edges of boards distance less than 18mm, be judged to be qualified products.Because also want trimming 40mm after steel plate rolling, and the 18mm back gauge adds detection blind hole hole depth 15mm sum less than 40mm, and is fully qualified after trimming.

If chi base 2 has larger crackle, after repeat-rolling, this crackle can make and detect the displacement that blind hole 1 is done than large scale, and index aperture and edges of boards greater than 40mm, are judged to be defective apart from meeting.

Two corner angle bore respectively two and three different hole counts in hole, are to be that chi base 2 which side go wrong as can be known in order to judge.

The utility model aims to provide a kind ofly can do crackle location, the position method corresponding with ratio on strand and stocking, trackability is strong, can judge intuitively the bight that whether comes from strand with witness plate edge crackle, for the judgement of later crackle of the same type provides foundation, detect judgement and need not to get the crackle sample with precision instrument, effectively use manpower and material resources sparingly; Also help to come from continuous casting, steel rolling the reason of system searching and crackle generation, and then instruct and use for reference for production provides.

The utility model takes full advantage of the method for chi base boring sign, just can judge the sheet material edge crackle be the expansion of the former strand crackle of the operation of rolling or rolling in new the generation, method simple practical, simple and clear, for study of various crack problem in Heavy Plate Production provides a direction, very strong reference value is arranged, be adapted at promoting the use of on the Heavy Plate Production line.

Claims

1. the chi blank structure to be rolled of a rolled plate, comprise the chi base, it is characterized in that: being drilled with respectively three, two diameters on the corner angle of the upper surface both sides of chi base (2) length direction is that Φ 12mm, the degree of depth are the detection blind hole (1) of 15mm, detects blind hole (1) axial line and chi base (2) length direction upper surface angle and is 45 and spend; Adjacent detection blind hole (1) spacing is 350-450mm, the interstitial hole that one three of sides detect blind hole (1) is on the cross central line of length direction upper surface, and two of opposite sides detect blind hole (1) orientation take the cross central line of length direction upper surface as symmetrical.