CN103381506B - The sawing device of sawing Yi shape steel and the method for sawing Yi shape steel - Google Patents
The sawing device of sawing Yi shape steel and the method for sawing Yi shape steel Download PDFInfo
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Abstract
On the one hand, the invention provides a kind of sawing device of sawing Yi shape steel, comprising: for the roll with Yi shape pass (7) of rolling Yi shape steel (1); For placing the roller-way being arranged on the downstream of roll of the Yi shape steel through rolling; And for the Yi shape steel be placed on roller-way being sawed the sawing machine being arranged on the side of roller-way of cutting into chunks; Wherein, the side leg of the working face (3) of roller-way, the waist (15) of Yi shape steel and Yi shape steel forms the triangular chamber (5) that drift angle is right angle, the length of the short right-angle side of triangular chamber is the length of the short-leg of Yi shape steel, and sawing machine is arranged on the side of the short right-angle side of triangular chamber.On the other hand, the present invention also provides a kind of method of sawing Yi shape steel.The present invention, by the setting laying state of Yi shape steel and the sawing direction of sawing machine, can avoid causing tearing and adhering to of the coating metal at the saw kerf back side, prevent the generation of sawing overlap.
Description
Technical field
The present invention relates to field of metallurgy, particularly, relate to a kind of sawing device of sawing Yi shape steel and the method for sawing Yi shape steel.
Background technology
In the production process of Yi shape steel, on the Yi shape steel of rolling, cold bed cools.Cooled rolled piece through aligning after, sawing become required by length.Usually sawing overlap can be produced at rolled piece two ends during sawing Yi shape steel.3/4 ~ 4/5 of the waist of sawing overlap and Yi shape steel fits tightly or is connected, and is sometimes also connected with leg.The sawing section producing sawing overlap has been shown in Fig. 1.
Sawing overlap is the powerful thrust that saw kerf back surface layer metal is subject to saw blade, and tears formation from body.Because saw kerf both sides are by force unbalance, sawing overlap departs from body from stressed large side, and stressed little side then sticks on body.The reason causing sawing overlap to adhere to body is that the heat that saw blade and metal severe friction produce makes saw kerf place metal temperature raise, caused by plasticity increases substantially.
The metal toughness of the root be connected with waist due to sawing overlap is strong, so artificial clamp or scoop cleaning difficulty are greatly, efficiency is low.The more excellent method of process sawing overlap should be the generation of as far as possible stopping sawing overlap.In the prior art, although sawing overlap fixedly can be controlled certain one end in saw kerf by the height of adjustment rolled piece saw kerf place both sides cushion block, cannot eliminate or alleviate the generation of sawing overlap.Therefore, the situation of process sawing overlap of the prior art is to be improved.
Summary of the invention
The object of this invention is to provide a kind of sawing device of sawing Yi shape steel, and the sawing method of sawing Yi shape steel, to prevent the generation of sawing overlap in the process of sawing Yi shape steel.
To achieve these goals, on the one hand, the invention provides a kind of sawing device of sawing Yi shape steel, comprising: for the roll with Yi shape pass of rolling Yi shape steel; For placing the roller-way being arranged on the downstream of roll of the Yi shape steel through rolling; And for the Yi shape steel be placed on roller-way being sawed the sawing machine being arranged on the side of roller-way of cutting into chunks; Wherein, it is the triangular chamber at right angle that the side leg of the working face of roller-way, the waist of Yi shape steel and Yi shape steel forms drift angle, the length of the short right-angle side of triangular chamber is the length of the short-leg of Yi shape steel, and sawing machine is arranged on the side of the short right-angle side of triangular chamber.
Preferably, the side leg forming the Yi shape steel of triangular chamber with the working face of roller-way and the waist of Yi shape steel is the short-leg of Yi shape steel, and the short-leg inner chamber of the Yi shape pass of roll is arranged downward.
Preferably, the side leg forming the Yi shape steel of triangular chamber with the working face of roller-way and the waist of Yi shape steel is the long leg of Yi shape steel; The long leg inner chamber of the Yi shape pass of roll is arranged downward; And the working face of roller-way offers groove, and the free end of the long leg of Yi shape steel inserts and supports in a groove; Wherein, the degree of depth of groove is the long leg of Yi shape steel and the difference of the size of short-leg on the direction of the working face perpendicular to described roller-way.
Preferably, the width of groove is 15mm to 100mm.
Preferably, sawing machine is translation slide-like sawing machine; Wherein, minimum point to the distance of the working face of roller-way of the saw blade of sawing machine is greater than the degree of depth of groove.
Preferably, the diameter of sawing machine is set to 1650mm to 1800mm.
On the other hand, the present invention also provides a kind of method of sawing Yi shape steel, comprise the following steps: step 1, use roll rolling Yi shape steel and the Yi shape steel through roll rolling is placed on the working face of roller-way, wherein, it is the triangular chamber at right angle that the side leg of the working face of roller-way, the waist of Yi shape steel and Yi shape steel forms drift angle, and the length of the short right-angle side of triangular chamber is the length of the short-leg of Yi shape steel; Step 2, from the side sawing Yi shape steel of the short right-angle side of triangular chamber.
Preferably, step 1 comprises further: the Yi shape pass of roll is set to short-leg inner chamber downward; And Yi shape steel good for rolling is placed on the working face of roller-way according to short-leg inner chamber direction down.
Preferably, step 1 comprises further: the Yi shape pass of roll is set to long leg inner chamber downward; The working face of roller-way offers groove, and the degree of depth of groove is the difference of the long leg of Yi shape steel and the length of short-leg; Yi shape steel good for rolling is placed on the working face of roller-way according to long leg inner chamber direction down; And by the free end of the long leg of Yi shape steel insert and support in a groove.
Preferably, sawing machine is translation slide-like sawing machine; Wherein, minimum point to the distance of the working face of roller-way of the saw blade of sawing machine is greater than the degree of depth of groove.
Beneficial effect of the present invention is, by the setting laying state of Yi shape steel and the sawing direction of sawing machine, make the contact arc length between saw blade increment and rolled piece be optimized to predictable minimum state, the frictional resistance that saw blade is subject in sawing process therefore reduces.By this, can avoid causing tearing and adhering to of the coating metal at the saw kerf back side, effectively prevent the generation of sawing overlap.And then, the operation of cleaning sawing overlap can be removed from, reduce production cost, improve production efficiency.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the sawing section producing sawing overlap in prior art;
Fig. 2 is the operating principle schematic diagram of Yi shape steel sawing device according to an embodiment of the invention;
Fig. 3 a to Fig. 3 b is the Groove Design mode schematic diagram of the roll that two kinds of short-leg inner chambers are arranged downward;
Fig. 4 is the operating principle schematic diagram of Yi shape steel sawing device according to another embodiment of the invention;
Fig. 5 is the contact relation schematic diagram of saw blade and Yi shape steel;
Fig. 6 shows the possible arrangement of on the working face of roller-way four kinds of Yi shape steel;
Fig. 7 a to Fig. 7 d is under the arrangement of kind of the Yi shape steel of four shown in Fig. 6, the saw blade of often kind of arrangement and the angle analytic curve of Yi shape steel;
Fig. 8 is the schematic diagram of the Maximum Contact arc length of saw blade increment and Yi shape steel;
Fig. 9 a to Fig. 9 d is under the arrangement of kind of the Yi shape steel of four shown in Fig. 6, the effect schematic diagram of the sawing section produced after sawing;
Figure 10 is the flow chart of the method for sawing Yi shape steel according to one embodiment of present invention;
Figure 11 is the flow chart of the method for sawing Yi shape steel according to another embodiment of the invention.
Description of reference numerals
The free end of the long leg of long leg 111 Yi shape steel of 1 Yi shape steel 11 Yi shape steel
The waist of short-leg 15 Yi shape steel of 13 Yi shape steels
The working face 5 triangular chamber 6 sawing overlap of 3 roller-ways
The long leg position of the Yi shape pass 71 Yi shape pass of 7 rolls
The short-leg position 75 long leg inner chamber 77 short-leg inner chamber of 73 Yi shape passes
8 saw blade 9 grooves
The minimum point of t saw blade is to the degree of depth of the distance k groove of the working face of roller-way
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of sawing device avoiding the sawing Yi shape steel producing sawing overlap.Fig. 2 is the operating principle schematic diagram of Yi shape steel sawing device according to an embodiment of the invention.According to this embodiment, Yi shape steel sawing device comprises the roll for rolling Yi shape steel 1.The pass of roll is Yi shape, and Fig. 3 a and Fig. 3 b illustrates the configuration mode of the pass of two kinds of concrete rolls.As illustrated in figures 3 a and 3b, Yi shape pass 7 has long leg position 71 and short-leg position 73, correspondingly forms long leg inner chamber 75 and short-leg inner chamber 77.According to the present embodiment, short-leg inner chamber 77 is arranged downward.In the downstream of roll, i.e. the exit of Yi shape pass 7, is provided with the roller-way of support transport rolled piece.Yi shape steel 1 through rolling is directly placed on the working face 3 of roller-way, and its direction of placing is completely the same with the direction in roll.
As shown in Figure 2, after on the working face 3 that Yi shape steel 1 is placed on roller-way, two contacts site are formed with the working face 3 of roller-way.Wherein, the short-leg 13 of the working face 3 of roller-way, the waist 15 of Yi shape steel and Yi shape steel 1 forms triangular chamber 5.The drift angle of this triangular chamber 5 is the angle of 90 ° formed between the waist 15 of Yi shape steel 1 and short-leg 13.
According to embodiments of the invention, sawing device also comprises sawing machine.This sawing machine is arranged on the side of roller-way, by the length of Yi shape steel 1 transversely required by sawing one-tenth.The radius of the saw blade 8 of sawing machine is R, and saw blade minimum point is t to the distance of the working face of roller-way.According to embodiments of the invention, sawing machine is arranged on the side of the short-leg 13 of Yi shape steel 1.That is, sawing machine comes into effect sawing from the short-leg 13 of Yi shape steel 1.
Fig. 4 is the operating principle schematic diagram of Yi shape steel sawing device according to another embodiment of the invention.According to this embodiment, Yi shape steel sawing device comprises the roll with Yi shape pass 7 for rolling Yi shape steel 1.In the present embodiment, long leg inner chamber 75 is arranged downward.After on the working face 3 that the Yi shape steel 1 of rolling is placed on roller-way, the long leg 11 of the working face 3 of roller-way, the waist 15 of Yi shape steel and Yi shape steel 1 forms triangular chamber 5.Wherein, the drift angle of this triangular chamber 5 is the angle of 90 ° formed between the waist 15 of Yi shape steel 1 and long leg 11.
Continue with reference to figure 4, in order to the short right-angle side realizing this triangular chamber 5 keeps the length of short-leg 13, according to embodiments of the invention, the working face 3 of roller-way offers groove 9.The degree of depth k of groove 9 is set to the long leg 11 of Yi shape steel and the difference of the size of short-leg 13 on the direction of the working face 3 perpendicular to roller-way.The free end 111 of the long leg 11 of Yi shape steel inserts and is supported in groove 9, thus the length of the short right-angle side of maintenance triangular chamber 5 is the length of the short-leg 13 of Yi shape steel.According to a preferred embodiment of the invention, the width of groove 9 is 15mm to 100mm.This width can ensure the free end 111 of the long leg 11 of Yi shape steel to be contained in wherein, keeps the placed angle of Yi shape steel 1 on the working face 3 of roller-way, and prevents the free end 111 of long leg 11 from large-scale slip occurring.
Sawing machine is arranged on the side of the long leg 11 of Yi shape steel 1, that is, come into effect sawing from the side of the long leg 11 of Yi shape steel 1.According to embodiments of the invention, sawing machine is translation slide-like sawing machine, and the diameter of its saw blade 8 is 1650mm to 1800mm, and with in whole sawing process, the diameter of saw blade 8 is enough to sawing each position to Yi shape steel 1.For sawing 310 Yi shape steel.The length of the long leg 11 of 310 Yi shape steels is 186mm, and the length of short-leg is 125mm, and the length of waist 15 is 310mm.The difference of the length between long leg 11 and short-leg 13 is 61mm.The minimum point of saw blade 8 is set to 100mm to the distance t of the working face 3 of roller-way, and the degree of depth k of groove 9 is 59mm to 61mm.That is, the minimum point of saw blade 8 is set to the distance t of the working face 3 of roller-way the degree of depth k being greater than groove 9.
The aufbauprinciple of above-mentioned sawing device provided by the invention is as described below.
Saw blade 8 is in the process of sawing Yi shape steel 1, and the frictional resistance be subject to is formed when mainly Yi shape steel 1 is cut in blade teeth end-grain cutting.The contact arc length of saw blade increment and rolled piece determines the size of frictional resistance, and contact arc length is longer, and frictional resistance is larger, and the possibility producing overlap during sawing is larger.Shape due to Yi shape steel 1 cross section is shaped form, and therefore the sawing height of saw blade 8 in traveling process constantly changes, and the angle between saw blade 8 and Yi shape steel 1 is also constantly being changed.
Fig. 5 is the contact relation schematic diagram of saw blade 8 and Yi shape steel 1, and wherein, the relation that the saw blade angle of contingence changes with sawing height is as follows:
cosa＝h/x；
X＝h/cosa；
∠b＝[180-(90-∠a)]/2；
tgb＝r/x＝rcosa/h；
tg(45°+a/2)＝rcosa/h；
∠a＝2arctg((-R±(2rh-h2)1/2)/(r-h))。
Fig. 6 illustrates the arrangement that on the working face 3 of roller-way four kinds of Yi shape steel 1 are possible.When sawing angle is arranged on the left side of paper, for the arrangement of (a), the size of saw blade 8 and the angle ∠ c of Yi shape steel 1 is respectively: the ∠ c=∠ a-30 ° of long leg 11, the ∠ c=∠ a+60 ° of waist 15, the ∠ c=∠ a-30 ° of short-leg 13.In like manner can extrapolate the angle ∠ c of saw blade 8 and Yi shape steel 1 under (b), (c), (d) state.When the stroke span of saw blade 8 is in units of 10mm, under the arrangement of (a), (b), (c), (d) four kinds of Yi shape steels, saw blade 8 is illustrated in Fig. 7 a to Fig. 7 d with angle (hereinafter referred to as the sawing angle) analytic curve of Yi shape steel 1.
The size at sawing angle determines the contact arc length of saw blade increment and Yi shape steel 1.Sawing angle more departs from 90 °, then saw blade 8 is longer with the contact arc length of sawing spot.As can be seen from Fig. 7 a to Fig. 7 d:
A, under () laying state, the saw cutting angle of long leg 11 and short-leg 13 is about 25 ° changes, and the sawing angle of waist 15 is about 115 ° changes.Under this state, the sawing angle of long leg 11 and short-leg 13 and 90 ° depart from 65 °, and the sawing angle of waist 15 and 90 ° depart from only 25 °;
B, under () laying state, the saw cutting angle of long leg 11 and short-leg 13 is about 30 ° changes, and the sawing angle of waist 15 is about 128 ° changes.The sawing angle of long leg 11 and short-leg 13 and 90 ° depart from 60 °, and the sawing angle of waist 15 and 90 ° depart from 38 °;
C, under () laying state, the saw cutting angle of long leg 11 and short-leg 13 is about 70 ° changes, and the sawing angle of waist 15 is about 14 ° changes.The sawing angle of long leg 11 and short-leg 13 and 90 ° depart from 20 °, and the sawing angle of waist 15 and 90 ° depart from and reach 76 °;
D, under () laying state, the saw cutting angle of long leg 11 and short-leg 13 is about 87 ° changes, and the sawing angle of waist 15 is about 7 ° changes.The sawing angle of long leg 11 and short-leg 13 and 90 ° depart from 3 °, and the sawing angle of waist 15 and 90 ° depart from and reach 83 °.
As seen from the above analysis, under (a), (b) two kinds of laying states, the sawing angle of long leg 11 and short-leg 13 departs from 90 ° comparatively greatly, and the sawing angle of waist 15 is near 90 °.On the contrary, under (c), (d) two kinds of laying states, the sawing angle of long leg 11 and short-leg 13 is then near 90 °, and the sawing angle of waist 15 then departs from 90 ° far away.
During sawing, the contact arc length of saw blade increment and Yi shape steel 1 is longer, and the possibility producing sawing overlap is larger.Contact arc length is except with except sawing angular dependence (-dance), and also relevant with same sawing face cross-sectional length itself, under identical saw cutting angle, the longer contact arc in cross section, sawing face is longer.The length in three sawing faces of the long leg 11 of 310 Yi shape steels 1, short-leg 13 and waist 15 is respectively 310mm, 186mm, 125mm, therefore, the angle of the whole end face sawing quality of collateral security is considered, should pay the utmost attention to and be unfavorable for that waist 15 produces the laying state of overlap, be i.e. (a), (b) two kinds of laying states.
A (), (b) two schemes, because of the direction mode difference of placing, causes the sawing angle of long leg 11, short-leg 13 and waist 15 different.Under two kinds of laying states, central angle corresponding to the Maximum Contact arc length of the long leg 11 of saw blade 8 and Yi shape steel 1, short-leg 13 and waist 15 is see Fig. 8 and table 1.
The corresponding central angle table of table 1 Maximum Contact arc length
As can be seen from Table 1, under (a) (b) two kinds of laying states, saw blade 8 is roughly the same with the contact arc length of waist 15, but has obvious difference with the contact arc length of long leg 11 and short-leg 13.A the contact arc length of saw blade under () laying state 8 and long leg 11 and short-leg 13 is greater than the contact arc length of saw blade 8 under (b) laying state and long leg 11 and short-leg 13, be respectively 37% and 51%.Obviously, select (b) laying state to be beneficial to most and alleviate or eliminate sawing overlap.
In the prior art, substantially all adopt (d) laying state, implement sawing from short-leg side.This is the reason causing producing a large amount of overlap.In order to the difference of the sawing effect of several laying state is described, following test can be carried out.
Under (a), (b), (c), (d) four kinds of different laying states, sawing 10 test Yi shape steels respectively from the left side of paper to right side.Fig. 9 a to 9d produces the sawing section of sawing overlap 6 under being respectively (a), (b), (c), (d) four kinds of laying states.Result of the test shows, and have 3 sawing overlaps to eliminate completely in lower 10 the test steel of (a) state, another 7 free ends 111 at long leg 11, short-leg 13 and the junction of waist 15 have the long sawing overlap of about 5mm to adhere to; B the sawing overlap of lower 10 the test steel of () laying state is eliminated completely, effect is best; Sawing overlap is all there is, the wherein adhesion length of sawing overlap sawing overlap under the adhesion of waist is shorter in length than (d) laying state under (c) laying state in lower 10 the test steel of (c), (d) laying state at waist.D having 4 to test steel under () laying state adheres to serious, the corner of whole waist and long leg and waist all has overlap to exist.
To sum up, adopt (b) laying state on the left of paper, implement the mode of sawing, for elimination sawing overlap, effect is best.Above-mentioned sawing device provided by the invention can realize the program.Further, according to a further aspect in the invention, a kind of method of sawing Yi shape steel is also provided, so that the working face 3 realizing Yi shape steel 1 to be placed on (b) laying state roller-way to carry out sawing.
According to one embodiment of present invention, with reference to Figure 10, the step of sawing Yi shape steel is as follows.First, as shown in Figure 3 a and Figure 3 b shows, the Yi shape pass 7 of described roll is set to short-leg inner chamber 77 downward.Secondly, as shown in Figure 2, Yi shape steel 1 good for rolling is placed on the working face 3 of roller-way according to short-leg inner chamber 77 direction down.Like this, Yi shape steel 1 forms two contacts site with the working face 3 of roller-way on the working face 3 of roller-way.Wherein, the short-leg 13 of the working face 3 of roller-way, the waist 15 of Yi shape steel and Yi shape steel 1 forms triangular chamber 5.The drift angle of this triangular chamber 5 is the angle of 90 ° formed between the waist 15 of Yi shape steel 1 and short-leg 13.Again, sawing machine is arranged on the side of the short-leg 13 of Yi shape steel 1.Like this, sawing machine can come into effect sawing from the short-leg 13 of Yi shape steel 1.Namely achieve, under above-mentioned (b) laying state, sawing is carried out to Yi shape steel 1.
According to another embodiment of the invention, with reference to Figure 11, the step of sawing Yi shape steel is as follows.First, the Yi shape pass 7 of roll is set to long leg inner chamber 75 downward.Secondly, as shown in Figure 4, the working face 3 of roller-way offers groove 9, the degree of depth k of groove 9 is the long leg 11 of Yi shape steel and the difference of the size of short-leg 13 on the direction of the working face 3 perpendicular to roller-way.For 310 Yi shape steels, the length of its long leg 11 is 186mm, and the length of short-leg is 125mm, and the length of waist 15 is 310mm.The degree of depth k of groove 9 can be set to 59mm to 61mm.The width of groove is preferably 15mm to 100mm.Again, Yi shape steel 1 good for rolling is placed on the working face 3 of roller-way according to long leg inner chamber 75 direction down.Then, the free end 111 of the long leg of Yi shape steel inserted and be supported in groove 9.Like this, the long leg 11 of the working face 3 of roller-way, the waist 15 of Yi shape steel and Yi shape steel 1 forms triangular chamber 5.Further, the length of the short right-angle side of triangular chamber 5 can be kept to be the length of the short-leg 13 of Yi shape steel.So, being equivalent to the laying state of Yi shape steel 1 and sawing angle to revise, is implement the angle of sawing from short-leg side by the angle modification implementing sawing from long leg side.Afterwards, sawing is come into effect from the side of the long leg 11 of Yi shape steel 1.Similarly, achieve, under above-mentioned (b) laying state, sawing is carried out to Yi shape steel 1.According to a preferred embodiment of the invention, sawing machine can select translation slide-like sawing machine, and the diameter of its saw blade 8 is 1650mm to 1800mm.The minimum point of saw blade 8 is set to the distance t of the working face 3 of roller-way the degree of depth k being greater than groove, such as, is set to 100mm.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.Such as, the degree of depth of groove arranges and can slightly adjust.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (6)
1. a sawing device for sawing Yi shape steel, comprising:
Roll, has Yi shape pass (7), for rolling Yi shape steel (1);
Roller-way, is arranged on the downstream of described roll, for placing the described Yi shape steel (1) through rolling; And
Sawing machine, is arranged on the side of described roller-way, for being cut into chunks by the described Yi shape steel (1) be placed on described roller-way saw;
Wherein, the waist (15) of the working face (3) of described roller-way, described Yi shape steel and the side leg of described Yi shape steel form the triangular chamber (5) that drift angle is right angle, the length of the short right-angle side of described triangular chamber (5) is the length of the short-leg (13) of described Yi shape steel, and
Described sawing machine is arranged on the side of the described short right-angle side of described triangular chamber (5);
The side leg forming the described Yi shape steel of triangular chamber (5) with the working face (3) of described roller-way and the waist (15) of Yi shape steel is the long leg (11) of described Yi shape steel;
The long leg inner chamber (75) of the Yi shape pass (7) of described roll is arranged downward; And
The working face (3) of described roller-way offers groove (9), and the free end (111) of the long leg (11) of described Yi shape steel inserts and is supported in described groove (9); Wherein, the difference of the degree of depth (k) of described groove (9) long leg (11) that is described Yi shape steel and the size of short-leg (13) on the direction of the working face (3) perpendicular to described roller-way.
2. the sawing device of sawing Yi shape steel according to claim 1, is characterized in that, the width of described groove (9) is 15mm to 100mm.
3. the sawing device of sawing Yi shape steel according to claim 1 and 2, is characterized in that, described sawing machine is translation slide-like sawing machine;
Wherein, minimum point to the distance (t) of working face (3) of described roller-way of the saw blade (8) of described sawing machine is greater than the degree of depth (k) of described groove (9).
4. the sawing device of sawing Yi shape steel according to claim 3, is characterized in that, the diameter of described sawing machine is set to 1650mm to 1800mm.
5. a method for sawing Yi shape steel, is characterized in that, comprises the following steps:
Step 1, use roll rolling Yi shape steel (1) and the Yi shape steel (1) through roll rolling is placed on the working face (3) of roller-way, wherein, the waist (15) of the working face (3) of described roller-way, described Yi shape steel and the side leg of described Yi shape steel form the triangular chamber (5) that drift angle is right angle, and the length of the short right-angle side of described triangular chamber (5) is the length of the short-leg (13) of described Yi shape steel;
The Yi shape pass (7) of described roll is set to long leg inner chamber (75) downward;
The working face (3) of described roller-way offers groove (9), the difference of the long leg (11) that the degree of depth (k) of described groove (9) is described Yi shape steel and the size of short-leg (13) on the direction of the working face (3) perpendicular to described roller-way;
Described Yi shape steel (1) good for rolling is placed on the working face (3) of described roller-way according to long leg inner chamber (75) direction down; And
The free end (111) of the long leg of described Yi shape steel is inserted and is supported in described groove (9);
Step 2, from Yi shape steel (1) described in the side sawing of the described short right-angle side of described triangular chamber (5).
6. the method for sawing Yi shape steel according to claim 5, is characterized in that, described sawing machine is translation slide-like sawing machine;
Wherein, minimum point to the distance (t) of working face (3) of described roller-way of the saw blade (8) of described sawing machine is greater than the degree of depth (k) of described groove (9).
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| CN201210134766.XA CN103381506B (en) | 2012-05-03 | 2012-05-03 | The sawing device of sawing Yi shape steel and the method for sawing Yi shape steel |
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| CN1416973A (en) * | 2001-10-29 | 2003-05-14 | 攀枝花新钢钒股份有限公司轨梁厂 | Method of rolling No.310 Z-steel with continuously cast plate slab |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919765B2 (en) * | 1980-10-21 | 1984-05-08 | 川崎製鉄株式会社 | Rolling method of rough shaped steel billets for Z-shaped steel sheet piles |
| JPS597402A (en) * | 1982-07-06 | 1984-01-14 | Sumitomo Metal Ind Ltd | Production of unequal steel angle |
| JPS6182904A (en) * | 1984-09-28 | 1986-04-26 | Nippon Steel Corp | Rough or intermediate rolling method of shape stock by a pair of calibers |
| CN1100973A (en) * | 1993-09-30 | 1995-04-05 | 攀枝花钢铁(集团)公司 | Z-shaped steel rolling method and device |
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2012
- 2012-05-03 CN CN201210134766.XA patent/CN103381506B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100973C (en) * | 1994-09-21 | 2003-02-05 | 有限会社白井商事 | Solar thermal storage apparatus and hot water supply system including same |
| CN1132669A (en) * | 1994-12-07 | 1996-10-09 | 普罗菲尔阿博德公司 | Method for rolling Z-section sheet piles |
| RU2108279C1 (en) * | 1995-10-09 | 1998-04-10 | Пензенский государственный архитектурно-строительный институт | Zee beam and method of its manufacture |
| CN1416973A (en) * | 2001-10-29 | 2003-05-14 | 攀枝花新钢钒股份有限公司轨梁厂 | Method of rolling No.310 Z-steel with continuously cast plate slab |
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| 《310乙字钢孔型设计与轧制》;林健椿等;《钢铁》;19800930;第15卷(第6期);第21-27页 * |
| 《310乙字钢的试制》;孙秉云;《包钢科技》;19990131(第1期);第46-62页 * |
| 《330乙字钢轧机负荷计算》;程强;《四川冶金》;20070630(第3期);第20-22页 * |
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| CN103381506A (en) | 2013-11-06 |
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