CN1365863A

CN1365863A - Roof plate

Info

Publication number: CN1365863A
Application number: CN 02101868
Authority: CN
Inventors: 坎贝尔·J·塞科姆
Original assignee: BHP STEEL (RP) PTY Ltd
Current assignee: BHP STEEL (RP) PTY Ltd; BHP Steel JLA Pty Ltd
Priority date: 2001-01-17
Filing date: 2002-01-16
Publication date: 2002-08-28
Anticipated expiration: 2022-01-16
Also published as: MY128436A; SG103331A1; CN1230260C; AUPR256501A0

Abstract

The present invention relates to a roof panels comprising a plate and a pair of opposite flanges. Each of the flange comprises cold reduction ribs which project to inner side and extend lengthways. The ribs are formed to approximately the same shape and are formed closely to the free edges of the corresponding flanges. The adjacent roof panels are connected by slender skein obtained by using traditional machine in situ. The roof panels are cold rolled to passage section profile by traditional cold rolling machine. The flanges are cold reduced to deform the lengthways ribs comprising the flanges are differential drawn by extruding using variable force. The roof panels are lengthways pre-warped by the cold reducing or drawing of the flanges. The pre-warped of the roof panels are eliminated by the wave of the flanges.

Description

Roofing slab

Technical field

The present invention generally relates to a kind of elongated metal building element, and particularly but be not exclusively involved in a kind of roofing slab of metal.

Summary of the invention

According to an aspect of the present invention, provide a kind of method that forms the long and thin metal Constracture unit of channel cross-section profile, this Constracture unit comprises a flat board and a pair of relative flange, said method comprising the steps of:

With the sheet metal rolling formation is the channel cross-section profile; And

The part of at least one is to form the rib of inwardly outstanding and longitudinal extension, vertically pre-this Constracture unit of warpage of the cold reduction of described flange in a pair of opposing flanges of cold reduction (cold reducing).

Preferred this method also is included in the ripple that forms horizontal expansion in described at least one opposing flanges.More preferably the transverse wave cross section is for vertically being tapered, and wherein, maximum ripple is formed near the corresponding rib.Usually, transverse wave works in the camber of removing Constracture unit.

Preferred cold step of reducing comprises that the described part of differential stretch flange is to form rib.More preferably differential stretching is by realizing with variable power crush ribs.

Preferred this method also comprises the step of described at least one flange of cold forming, and thus, described ripple can be flattened basically.Usually, this cold forming of flange is implemented when recovering vertical camber of Constracture unit.

According to a further aspect in the invention, a kind of long and thin metal Constracture unit of channel cross-section profile is provided, this element comprises a flat board and an a pair of relative flange, and each flange all has an inwardly outstanding also rib of the cold reduction of longitudinal extension, and this Constracture unit is by vertical pre-warpage.

Preferred elongated metal building element is in a plurality of described Constracture unit that is juxtaposed to each other.More preferably adjacent Constracture unit connects via elongated cuff, this cuff be configured to be positioned at corresponding and adjacent ribs adjacent rib near.

Preferred elongated metal building element is made of light relatively specification and the low steel that stretches.Metal roof can be made of the metal of precoating, and this metal is all in this way at the commercial general ZINCALUME of Australia (trade mark).

Usually, the long and thin metal Constracture unit is a metal roof panel.

Description of drawings

Understand the present invention better in order to be beneficial to, with the preferred embodiment that only describes the long and thin metal Constracture unit with reference to the accompanying drawings in the mode of example with and manufacture method.Wherein:

Fig. 1 is the cross-sectional view with the sectional drawing adjacent metal Constracture unit together of the amplification of elongated cuff; And

Fig. 2 is the indicative flowchart of general step included in forming Constracture unit process shown in Figure 1.

The specific embodiment

As shown in Figure 1, show the part of adjacent

metal Constracture unit

10,12 respectively, each element is elongated and is the channel cross-section profile.The

metal building element

10 and 12 of the present embodiment roofing slab that the metal of precoating of relative light specification (0.6mm) forms of serving as reasons, this metal is as at the commercial general ZINCALUME of Australia (trade mark).

Roofing slab 10 comprises flat board 14 and a pair of

relative flange

16 and 18 respectively.Each

flange

16 and 18 comprises inwardly outstanding and the cold reduction rib 20 of longitudinal extension and 22.

Rib

20 and 22 is shaped as basic identical each other, and forms near the free edge of respective flanges 16 and 18.

Adjacent ribs

16 and 18

adjacent rib

20 and 22 are in alignment with each other, and against the time together roughly form the rhomboid shape.Adjacent roofing slab 10 connects together via elongated cuff 24 with 12.Cuff 24 utilizes the on-the-spot manufacturing of traditional seam machine, and this machine is around adjacent rib (20 and 22) distortion and extruding cuff 24.Cuff 24 also act as protection precoating steel, and these steel may be damaged in the process that forms

rib

20 and 22.

Fig. 2 is the schematic block diagrams that forms the method for optimizing of long and thin metal Constracture unit, and in this example, the long and thin metal Constracture unit is the roofing slab that is formed by sheet metal.Roughly step included in forming

roofing slab

10 or 12 processes is as follows:

(i) sheet metal is preferably by cold roll-in, to form the channel cross-section profile that comprises dull and stereotyped and a pair of opposing flanges;

The (ii) cold reduction of free edge part of opposing flanges is to form the rib of inwardly outstanding and longitudinal extension;

(iii) in relative flange, form horizontal ripple;

The roofing slab that (iv) forms rib and ripple cuts by Len req.

Utilize traditional rolling formation machine and technology, the roofing slab 10 of present embodiment or 12 is the channel cross-section profile by cold rolling formation.The cold reduction of flange 16 comprises by the differential stretch flange 16 with variable power crush ribs 16 with the step that forms longitudinal rib 20.Sheet metal is stretched or prolongs approximately 5%, and therefore, this method is particularly suitable for low the stretching or soft relatively steel.Usually, by the rolling formation flange, rib is formed on the related free edge edge of opposing flanges.

Flange

16 or 18 cold reduction or vertical pre-warpage

roofing slab

10 or 12 of that

stretches.Flange

16 or 18 corrugated design become to remove the camber of roofing slab 10 or 12.In this example, the transverse wave cross section is for vertically being tapered, and maximum ripple is formed near respective rib 20 or 22.Transverse wave utilizes traditional cold rolling formation machine to form.In order to be beneficial to on-the-spot transportation and to build, and removed camber.

The roofing slab 10 and 12 that is formed with rib and ripple cuts by Len req then.This is to utilize traditional shear to realize.The

roofing slab

10 and 12 that is cut is then by stacked, or wires up, so that transportation.

Roofing

slab

10 and 12 is designed at the scene warpage in advance.This is realized by the ripple in the

flange

16 and 18 that flattens roofing slab 10 or 12.Ripple is removed by cold forming device to small part, the ripple in this cold forming device leveling flange 16 and 18.Then,

roofing slab

10 or 12 returns to its state of warpage in advance.

Those skilled in the art will appreciate that the present invention described here is easy to be different from this specifically described change and modification.For example, the specific cross section profile of Constracture unit can change, as long as it is roughly channel cross-section, for example, flat board can comprise the ribs of one or more longitudinal extensions.The order of manufacturing step can change and with described different, for example, sheet metal can coldly reduce, forming the rib of longitudinal extension, and then prior to rolling formation and rippleization.

All this variations and modification considered to be within the scope of the present invention.

In the general introduction of front of the present invention, except the place that content needs, other are local owing to representation language or necessary hint, and term " comprises " meaning with " comprising ".

Claims

1. method that forms the long and thin metal Constracture unit of channel cross-section profile, this element have a dull and stereotyped and a pair of relative flange, said method comprising the steps of:

Cold reduction this at least one the part in the opposing flanges, to form the rib of inwardly outstanding and longitudinal extension, vertically pre-this Constracture unit of warpage of the cold reduction of described flange.

2. the method for claim 1, wherein be included in the step that forms the ripple of horizontal expansion in described at least one opposing flanges.

3. method as claimed in claim 2, wherein, the cross section of transverse wave vertically is tapered, and maximum ripple is formed near the corresponding rib.

4. as claim 2 or 3 described methods, wherein, transverse wave is implemented when removing camber from Constracture unit.

5. the method according to any one of the preceding claims, wherein, cold step of reducing comprises that the described part of differential stretch flange is to form rib.

6. method as claimed in claim 5, wherein, differential stretching is by realizing with variable power crush ribs.

7. method as claimed in claim 2 wherein, also comprises the step of described at least one flange of cold forming, smooth basically whereby described ripple.

8. method as claimed in claim 7, wherein, the described cold forming of flange is implemented when recovering the vertical camber of Constracture unit.

9. the long and thin metal Constracture unit of a channel cross-section profile comprises a flat board and a pair of relative flange, and each flange has the cold reduction rib to inner process and longitudinal extension, and this Constracture unit is by vertically pre-warpage.

10. metal building element as claimed in claim 9, wherein, described Constracture unit is in a plurality of described Constracture unit that is juxtaposed to each other.

11. metal building element as claimed in claim 10, wherein, the adjacent architectural element connects together via elongated cuff, this cuff be configured to be positioned at corresponding and adjacent flange rib near.

12. as each described metal building element in the claim 9 to 11, wherein, described Constracture unit is by light relatively specification and the low steel structure that stretches.

13. as each described metal building element in the claim 9 to 12, wherein, described Constracture unit is a metal roof panel.