CN102513362A - UE hole type for hot rolling J-shaped portal channel steel - Google Patents
UE hole type for hot rolling J-shaped portal channel steel Download PDFInfo
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- CN102513362A CN102513362A CN2011104110011A CN201110411001A CN102513362A CN 102513362 A CN102513362 A CN 102513362A CN 2011104110011 A CN2011104110011 A CN 2011104110011A CN 201110411001 A CN201110411001 A CN 201110411001A CN 102513362 A CN102513362 A CN 102513362A
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Abstract
The invention provides an UE hole type for hot rolling J-shaped portal channel steel. According to the UE hole type for hot rolling J-shaped portal channel steel provided in the invention, finished holes are combination of universal hole type and edging holes type, wherein a roll collar side of a horizontal roller is provided with a support table, the height of the support table is the same as the depth of a flange corresponding to a rolled piece. By using the UE hole type for hot rolling J-shaped portal channel steel, the size of rolled piece can be precisely controlled, so as to realize controlled rolling easily, help improve product precise, reduce rolling passes and manufacturing cost, and meet use demands of users.
Description
Technical field
The invention belongs to the hot-rolled steel section technical field, specifically, the present invention relates to a kind of UE pass of hot rolling J type door frame channel-section steel.
Background technology
When using universal mill system rolling channel steel, what generally adopt at present is that the finished product hole is omnipotent pass, and combines with the edging pass of leader pass, and wherein, the top flange of rolled piece is unrestricted spread in omnipotent pass.
Fig. 1 shows the pass sketch map according to the used finished product hole of the universal mill of prior art.What be provided with respectively at finished product hole and leader pass according to the universal mill of prior art is omnipotent pass and edging pass, makes the top flange of rolled piece in omnipotent pass, be unrestricted spread.Top flange to rolled piece in leader pass is processed, and gets into the finished product hole then.As shown in Figure 1, the top flange of rolled piece is processed at the position 1,2,3 in finished product hole, therefore in the finished product hole, can not depressed, and be the unrestricted spread state, thereby the formation of the top flange of rolled piece is unrestricted.Yet; In the process that the omnipotent finished product hole of adopting prior art as shown in Figure 1 is rolled; Drafts can not be too big; Otherwise defectives such as size is inconsistent can appear before and after the inclination, circular arc, long scale in top flange, and when the flange width tolerance that requires rolled piece ± when 1.5mm was following, size was difficult to stably control more.For example, aspect the production of the H shaped steel such as forklift door frame channel-section steel that are used for mechanical industry, use existing omnipotent finished product hole can not satisfy user's demand.Simultaneously, the shaped steel size can not be controlled at the littler margin of tolerance, thereby has influenced the lifting of product quality.
Summary of the invention
The rolling door frame channel-section steel of universal mill dimensional tolerance range is big in order to overcome, the difficult problem of control accuracy difference, the invention provides a kind of brand-new UE pass design.
The invention provides a kind of UE pass that is used for hot rolling J type door frame channel-section steel, the finished product hole is omnipotent pass and the combining of edging pass, and wherein, is designed with saddle in the collars side of horizontal roller, and the height of saddle is identical with the corresponding edge of a wing degree of depth of rolled piece.
According to the present invention, the width of saddle is configured to make the roll gap of edger roll to be maintained at about 2.5mm.
According to the present invention, can be identical or different to the height of the last saddle of last horizontal roller design and the height of the following saddle that horizontal roller is down designed according to finished size.
According to the present invention, leader pass adopts the S roller, and wherein, the arc chord angle of the S roller of leader pass is used for the top flange of rolled piece is carried out preprocessing, and the radius of said arc chord angle can be in the scope of 5.5mm～8.0mm.
According to the present invention, adopt lathe in machining to go out the arc chord angle of leader pass, wherein, the blade diameter of the cutter of numerically controlled lathe is less than the pass size.
According to the present invention, can be Ф 710～770mm as the roller footpath of the horizontal roller of working roll, can be Ф 510～540mm as the roller footpath of the edger roll of driven voller.
Use can be controlled more accurately by the size of rolled piece, thereby be easier to realize controlled rolling according to the UE pass that is used for hot rolling J type door frame channel-section steel of the present invention, helps improving the product precision, reduces rolling pass, reduces production costs, and satisfies user's instructions for use.
Description of drawings
Detailed description when considering below in conjunction with accompanying drawing through reference; To more complete understanding of the present invention and many bonus of the present invention will be clear easily, the understanding that improves simultaneously, in the accompanying drawings; Identical label is represented same or analogous assembly, wherein:
Fig. 1 is the pass sketch map according to the used finished product of the universal mill of prior art hole;
Fig. 2 is the pass sketch map according to finished product of the present invention hole;
Fig. 3 is the pass sketch map according to leader pass of the present invention.
The specific embodiment
Hot rolling J type door frame channel-section steel is a kind of novel door frame channel-section steel, and except two legs identical with traditional C type channel-section steel, the back has one leg in addition, the H shaped steel of similar three legs of profile.The present invention provides a kind of UE pass (that is omnipotent edging combined pass) that is used for hot rolling J type door frame channel-section steel through the used finished product of existing universal mill hole is improved.Specifically, in the present invention, adopt the UE pass structure as the finished product hole, at the collars both sides of two horizontal operation rollers design saddle, the height of saddle conforms to the edge of a wing degree of depth of product, so that the precisely control product edge of a wing height and the degree of depth.
To combine accompanying drawing to describe the UE pass that is used for hot rolling J type door frame channel-section steel according to of the present invention in detail below.
Fig. 2 shows the pass sketch map according to finished product of the present invention hole, and Fig. 3 shows the pass sketch map according to leader pass of the present invention.
Usually, the upper and lower horizontal operation roller of universal mill is a drive roll, and two edger rolls are driven voller.According to one embodiment of present invention, the roller of horizontal roller footpath can be Ф 710～770mm, and the roller footpath of edger roll can be Ф 510～540mm.
With reference to Fig. 2, at the UE pass that is used for hot rolling J type door frame channel-section steel according to the present invention, the finished product hole is omnipotent pass and the combining of edging pass, and at the collars side design saddle 4,5 and 6 of horizontal roller.Specifically; Saddle 4 in the collars one side design of last horizontal roller; Be used for guaranteeing the exact value of the top flange height (also can be called " edge of a wing degree of depth ") of rolled piece, design saddle 5 and 6 down respectively, be used for guaranteeing the exact value of the lower flange height of rolled piece in the following collars both sides of horizontal roller.According to the present invention, saddle 4,5 and 6 height should consider to be considered the abrasion condition of roll again by the dimensional accuracy of rolled piece, and specifically, saddle 4,5 and 6 height can equal by the edge of a wing degree of depth of the correspondence of rolled piece.For example, in one embodiment of the invention, the edge of a wing degree of depth of being rolled J type channel-section steel is 39mm, and then the saddle 4,5 and 6 the degree of depth (that is, the height of saddle) also will be designed to 39mm, has taken into account the expanding with heat and contract with cold of metal, rolling with negative tolerance and roll wear so simultaneously.If the degree of depth of saddle is less than normal, then possibly cause the ultra lower limit of workpiece measurement; If the degree of depth of saddle is bigger than normal, then the finished product hole does not have restriction to the top flange of rolled piece.Be not use saddle in the last groove of existing technology, therefore, two side wing edge height of rolled piece can occur inconsistent, and top flange is gradient easily; Yet in the pass of the finished product hole of use saddle of the present invention, top flange is straight and the dimensional uniformity of long scale is better.It is pointed out that in the present invention, just increased the saddle in the pass of finished product hole, can't impact technological parameters such as roll gap.
In the present invention, the height of the last saddle 4 of last horizontal roller is corresponding to the top flange degree of depth of bandaging piece, and the following saddle 5 of following horizontal roller and 6 height are corresponding to the lower flange degree of depth of rolled piece.According to concrete needs, the height of last saddle 4 can require according to finished size with the height of following saddle 5 and 6 and identical or different.
In addition, according to the present invention, the width of saddle can be configured to make and remain with certain gap values between rollers between horizontal roller and the edger roll.According to one embodiment of present invention, the width of saddle can be set the roll gap 1,2 and 3 that makes edger roll for and be maintained at about 2.5mm.Specifically, consider the spring of roll, need to keep suitable gap values between rollers that therefore, according to the milling train situation, gap values between rollers is generally about 2.5mm.
At the UE pass that is used for hot rolling J type door frame channel-section steel according to the present invention; In order to cooperate the pass in the finished product hole shown in Fig. 2; Arc chord angle to the outside, the edge of a wing of the S roller of leader pass has carried out precise design, with the degree of filling that guarantees the leg point and can guarantee in the finished product hole, not extrude the ears or side handles of a utensil simultaneously.
Specifically, with reference to Fig. 3, leader pass adopts the S roller, and the arc chord angle 7,8,9 of the S roller of leader pass is used for the top flange of rolled piece is carried out preprocessing, and the radius of arc chord angle 7,8,9 can be in the scope of 5.5mm～.0mm.If external arc is then bigger than normal through the circular arc of its top flange behind the last groove at rolled piece greater than R8mm, can exist to be not fully filled phenomenon; If external arc less than R5.5mm, then crosses through its top flange behind the last groove at rolled piece be full of, in the edger roll roll gap, be prone to " ears or side handles of a utensil ".Therefore, in the present invention, the radius of the external arc of leader pass S roller is preferably 6.5mm in the scope of 5.5mm～mm.In addition, for guaranteeing end product quality, the crudy of external arc seems particularly important in the leader pass.In the present invention, the arc chord angle 7,8 of the leader pass shown in Fig. 3 and 9 adopts numerically controlled lathe to process to guarantee the precision and the smooth surface of turning, and Selection of Cutting is as the criterion less than the pass size with blade diameter.
Therefore,,, limited, realized that by the flange width of rolled piece be B ± 1.0mm by the unrestricted spread of rolled piece through adopting finished product hole pass shown in Figure 2 and leader pass pass shown in Figure 3 according to the present invention.Specifically, size and end shape to the edge of a wing of rolled piece in leader pass are processed, and wherein, the arc chord angle 7,8,9 of the S roller of leader pass has guaranteed the shape of the top flange of rolled piece; Rolled piece is behind process finished product hole, and the flange width of 4,5,6 pairs of rolled pieces of saddle of horizontal roller limits, thereby the edge of a wing degree of depth that can guarantee rolled piece meets the requirements.For example, in one embodiment of the invention, the edge of a wing degree of depth that makes rolled piece remains on about 39mm down hot basically, after the shrinkage generally at 38.6mm; In addition, along with the wearing and tearing of roll, this numerical value can increase to some extent, replaceable spare roll when not meeting the demands.
The method of work of UE pass of the present invention will be described in detail belows.
According to the present invention, upper and lower horizontal operation roller is a drive roll, and two edger rolls are driven voller.Before rolling,, set by rolled piece distance and the roll gap of horizontal roller and edger roll between thickness after rolling, two edger rolls at first according to by the thickness of rolled piece before rolling.Then, adopt leader pass shown in Figure 3 of the present invention and finished product hole shown in Figure 2 to adopt to carry out last twice rolling.
With reference to Fig. 3; When adopting leader pass of the present invention rolling; The metal in 7,8,9 pairs of rolled piece top flange outsides of the arc chord angle of leader pass is processed, and behind rolled piece entering leader pass, metal is full of in pass; 7,8,9 pairs of unnecessary metals of the arc chord angle of pass limit, and guarantee the shape of top flange.Therefore, in leader pass, not only can process, and can other positions of product be processed, make the rolled piece restricted spread, thereby can avoid rolled piece in the finished product hole, to form the ears or side handles of a utensil because of crossing to be full of to the top flange of product.
Then, the rolled piece through leader pass gets into the finished product hole.With reference to Fig. 2, the edger roll roll gap 1,2,3 in the finished product hole of setting according to product thickness, making rolled piece all is controlled rolling in the finished product hole, no unrestricted spread.The width on the edge of a wing of 4,5 and 6 pairs of rolled pieces of saddle is controlled, and edger roll is depressed the height of back through the last lower flange of roll gap 1,2,3 control rolled pieces, simultaneously the end on the edge of a wing of rolled piece is adjusted so that the shape of top flange meets the requirements.Therefore, when rolled piece got into the finished product hole of universal mill shown in Figure 2, horizontal roller was processed the web and the inboard, the edge of a wing of rolled piece, and processed outside the edge of a wing of edger roll to rolled piece, and horizontal roller can also be processed the leg end of rolled piece simultaneously.Thereby, under the acting in conjunction of all rolls, limited by the deflection deformation of rolled piece, realized that by the gauge of rolled piece be H ± 1.0mm.Therefore, according to the present invention, finished product hole pass shown in Figure 2 had both played the effect of traditional universal mill pass, had played the effect of edging mill again.
In traditional universal mill, general edger roll only is used for the outside, the rolling edge of a wing in the omnipotent pass, and plain-barreled roll only is used for rolling web and the edge of a wing is inboard, and top flange only is rolled at leader pass.In the present invention, be the pass of S roller through the appropriate design leader pass, avoided unnecessary metal to be prone to spread and the ears or side handles of a utensil that cause from the position in the leg point outside; Through saddle is designed in the both sides of plain-barreled roll, the top flange of product is rolled, therefore, the present invention has realized on a rolling mill, simultaneously the web and the top flange of rolled piece being processed, and therefore can guarantee the dimensional accuracy of rolled piece.
Use is according to the UE pass that is used for hot rolling J type door frame channel-section steel of the present invention, and is more accurate by the size Control of rolled piece, is easier to realize controlled rolling, helps improving the product precision, reduces rolling pass, reduces production costs, and satisfies user's instructions for use.
Employing is applicable to the higher forklift door frame of coherence request of the forklift door frame that dimension precision requirement is high, particularly flange width according to the UE groove rolling products obtained therefrom of hot rolling J type door frame channel-section steel of the present invention.
The invention is not restricted to the foregoing description, under the situation of the spirit and scope of the present invention that do not break away from claim and limited, can carry out various variants and modifications embodiments of the invention.Therefore, the scope of the present invention design will be confirmed by the explanation of the wide region of the permission of claim and equivalent thereof.
Claims (6)
1. UE pass that is used for hot rolling J type door frame channel-section steel, finished product hole are omnipotent pass and the combining of edging pass, and it is characterized in that, are designed with saddle in the collars side of horizontal roller, and wherein, the height of saddle is identical with the corresponding edge of a wing degree of depth of rolled piece.
2. the UE pass that is used for hot rolling J type door frame channel-section steel according to claim 1 is characterized in that the width of saddle is configured to make the roll gap of edger roll to be maintained at about 2.5mm.
3. the UE pass that is used for hot rolling J type door frame channel-section steel according to claim 1 is characterized in that, and is identical or different according to the finished size requirement with the height to the following saddle of horizontal roller design down to the height of the last saddle of last horizontal roller design.
4. the UE pass that is used for hot rolling J type door frame channel-section steel according to claim 1; It is characterized in that leader pass adopts the S roller, wherein; The arc chord angle of the S roller of leader pass is used for the top flange of rolled piece is carried out preprocessing, and the radius of said arc chord angle is in the scope of 5.5mm～8.0mm.
5. the UE pass that is used for hot rolling J type door frame channel-section steel according to claim 4 is characterized in that, adopts lathe in machining to go out the said arc chord angle of leader pass, and wherein, the blade diameter of the cutter of lathe is less than the pass size.
6. the UE pass that is used for hot rolling J type door frame channel-section steel according to claim 1 is characterized in that, directly is Ф 710～770mm as the roller of the horizontal roller of working roll, directly is Ф 510～540mm as the roller of the edger roll of driven voller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104110011A CN102513362A (en) | 2011-12-12 | 2011-12-12 | UE hole type for hot rolling J-shaped portal channel steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104110011A CN102513362A (en) | 2011-12-12 | 2011-12-12 | UE hole type for hot rolling J-shaped portal channel steel |
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| Publication Number | Publication Date |
|---|---|
| CN102513362A true CN102513362A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104110011A Pending CN102513362A (en) | 2011-12-12 | 2011-12-12 | UE hole type for hot rolling J-shaped portal channel steel |
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| CN (1) | CN102513362A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316919A (en) * | 2013-07-08 | 2013-09-25 | 莱芜钢铁集团有限公司 | Mill roll assembly, rolling mill and method for rolling forklift portal frame profile steel |
| CN112742873A (en) * | 2020-11-30 | 2021-05-04 | 天津市中重科技工程有限公司 | Combined control hole pattern of universal rolling mill |
Citations (7)
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| JPS6330101A (en) * | 1986-07-21 | 1988-02-08 | Nippon Steel Corp | Production of channel steel with projection |
| CN2067196U (en) * | 1990-06-21 | 1990-12-12 | 河北省张家口地区贾家营钢管厂 | Roll pass working tool and its cutter grinding device |
| JPH0327801A (en) * | 1989-06-23 | 1991-02-06 | Kawasaki Steel Corp | Rolling method for h-shaped steel |
| CN1280888A (en) * | 1999-07-18 | 2001-01-24 | 张少渊 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
| CN1986089A (en) * | 2005-12-19 | 2007-06-27 | 洛阳华强铁路器材有限公司 | Horizontal rolling apparatus and process for rolling periodic profile steel in a four-roll mill |
| JP2009160630A (en) * | 2008-01-09 | 2009-07-23 | Sumitomo Metal Ind Ltd | Method and apparatus for rolling wide flange shape |
| CN102215989A (en) * | 2008-11-20 | 2011-10-12 | 杰富意钢铁株式会社 | Process for producing t-bar steel and series of rolling devices |
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2011
- 2011-12-12 CN CN2011104110011A patent/CN102513362A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330101A (en) * | 1986-07-21 | 1988-02-08 | Nippon Steel Corp | Production of channel steel with projection |
| JPH0327801A (en) * | 1989-06-23 | 1991-02-06 | Kawasaki Steel Corp | Rolling method for h-shaped steel |
| CN2067196U (en) * | 1990-06-21 | 1990-12-12 | 河北省张家口地区贾家营钢管厂 | Roll pass working tool and its cutter grinding device |
| CN1280888A (en) * | 1999-07-18 | 2001-01-24 | 张少渊 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
| CN1986089A (en) * | 2005-12-19 | 2007-06-27 | 洛阳华强铁路器材有限公司 | Horizontal rolling apparatus and process for rolling periodic profile steel in a four-roll mill |
| JP2009160630A (en) * | 2008-01-09 | 2009-07-23 | Sumitomo Metal Ind Ltd | Method and apparatus for rolling wide flange shape |
| CN102215989A (en) * | 2008-11-20 | 2011-10-12 | 杰富意钢铁株式会社 | Process for producing t-bar steel and series of rolling devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316919A (en) * | 2013-07-08 | 2013-09-25 | 莱芜钢铁集团有限公司 | Mill roll assembly, rolling mill and method for rolling forklift portal frame profile steel |
| CN112742873A (en) * | 2020-11-30 | 2021-05-04 | 天津市中重科技工程有限公司 | Combined control hole pattern of universal rolling mill |
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Application publication date: 20120627 |