Utility model content
The purpose of this utility model is to provide a kind of manufacturing steel ingot protective case, which can effectively subtract
The cydariform problem that few slab both ends are susceptible to, reduces sawing amount end to end, ensures the consistency of manufacturing steel ingot.
To achieve the above object, the utility model provides the following technical solutions:
A kind of manufacturing steel ingot protective case, including plate protective case ontology, the protective case ontology include that can be fitted in plank
The planar section on surface and the bending part that can be fitted in the blank perimeter, the bending part is by the planar section
One end is bent, and the length of the bending part accounts for the one third of the protective case body length to a quarter.
Preferably, the protective case ontology is in bar shaped.
Preferably, the thickness of the protective case ontology is 100-120mm.
Preferably, the width of the protective case ontology is 600-800mm.
Preferably, the protective case ontology is structural alloy steel protective case ontology or mould steel protective case ontology.
Preferably, the angle of the bending part and the planar section is 45-75 °.
Manufacturing steel ingot protective case provided by the utility model, including plate protective case ontology, the protective case ontology packet
Include the planar section that can be fitted in plate surface and the bending part of the blank perimeter can be fitted in, the bending part by
One end of the planar section is bent, and the length of the bending part accounts for the one third of the protective case body length extremely
A quarter.Planar section can be fitted in the surface of plank by the manufacturing steel ingot protective case when in use, and by bending part
Divide the end for being fitted in plank, during so that blank is melted down reheating, protective case covering part forms temperature difference with rest part,
Influence using temperature to metal material metal flow in plastic deformation, end both sides metal flow are faster than centre metal
Flowing velocity makes end face cydariform effectively reduce, more smooth, greatly reduces head sawing amount, makes pure titanium sheet slab lumber recovery
It is improved to 94.6% by original 93.5%, improves lumber recovery, increase economic benefit.
Specific implementation mode
The core of the utility model is to provide a kind of manufacturing steel ingot protective case, which can effectively subtract
The cydariform problem that few slab both ends are susceptible to, reduces sawing amount end to end, ensures the consistency of manufacturing steel ingot.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of structure of specific implementation mode of manufacturing steel ingot protective case provided by the utility model
Schematic diagram.
In this embodiment, manufacturing steel ingot protective case includes protective case ontology, and protective case ontology is plate-like, protective case sheet
Body includes the planar section 1 that can be fitted in plate surface and the bending part 2 that can be fitted in blank perimeter, specifically, bending
Part 2 can be fitted in the end of plank, and bending part 2 is bent by one end of planar section 1, and the length of bending part 2 accounts for
The one third of protective case body length is to a quarter.
More specifically, the bending part between bending part 2 and planar section 1 is arc-shaped, and curved bend folding part can be bonded
In the end edge of plank so that planar section 1 whole can be fitted on plank with bending part 2, to reduce plank end
The temperature in face centre.
Planar section 1 can be fitted in the surface of plank by the manufacturing steel ingot protective case when in use, and by bending part
Divide 2 ends for being fitted in plank, during so that blank is melted down reheating, protective case covering part forms temperature with rest part
Difference, the influence using temperature to metal material metal flow in plastic deformation, end both sides metal flow are faster than centre
Metal flow rates make end face cydariform effectively reduce, more smooth, greatly reduce head sawing amount, make pure titanium sheet slab at
Material rate is improved by original 93.5% to 94.6%, is improved lumber recovery, is increased economic benefit.
On the basis of the respective embodiments described above, protective case ontology is in bar shaped, and the protective case ontology of bar shaped is convenient for bending part
Divide 2 processing, meanwhile, it can be easy to use.Certainly, protective case ontology can be configured according to the shape of plank, such as can
Think rectangular etc., it is not limited to the shape given by the present embodiment.
On the basis of the respective embodiments described above, the thickness of protective case ontology is 100-120mm, to reduce to greatest extent
The temperature in sheet end surface centre.
On the basis of the respective embodiments described above, the width of protective case ontology is 600-800mm, ensures enough areas,
The end of plank is avoided to form cydariform.
On the basis of the respective embodiments described above, protective case ontology is that structural alloy steel protective case ontology or mould steel are protected
Ontology is covered, mould steel may be selected in common mould steel, which can be realized using the lower material processing of price
Expected effect, it is at low cost.
On the basis of the respective embodiments described above, bending part 2 and the angle of planar section 1 are 45-75 °, and angle is set
It sets, on the one hand should meet the size of plank end, i.e. the transition angle of plank end edge, on the other hand, angle should be avoided
It spends greatly, causes bending part 2 that can not be bonded with the end of plank.
Specifically, the provided manufacturing steel ingot protective case of the present embodiment, is mainly used in the production pure titanium sheet slab of high-quality, it is pure
The technological process of titanium sheet slab:Reheating → quick forging machine molding is melted down in titanium ingot heating → quick forging machine cogging →.
Titanium ingot heats:The pure titanium ingots of Ф 1000mm through consumable electrode vacuum furnace melting are used using general gas industrial heating furnace
Self-control steel capsule is heated;
Quick forging machine cogging:Blank is forged into intermediate base by titanium ingot, sectional dimension be thickness (forging stock nominal dimension >=50mm~
100mm) × width (forging stock nominal dimension >=100mm~150mm).960~1000 DEG C of heating temperature.The selection of sectional dimension is
Heating furnace in order to meet follow-up quick forging machine accommodates length and ensures deflection, and the selection of temperature is to ensure in this temperature
The as-cast grain of deformation ingot casting can be more fully crushed in degree range;
Quick forging machine is molded:960~1000 DEG C of forging temperature, One-time forging molding.170~200*1240 of finished size~
1260*L mm.The selection of forging temperature is that finished product forging is carried out in this temperature range according to titanium or titanium alloy characteristic, can be with
Even if ensureing that occurring temperature in forging process rises the shape it is also ensured that product, while improving product tissue;
Pure titanium sheet slab, advantageous effect are processed using the protective case:
1, the slab lumber recovery higher produced
Slab to be forged using the protective case, effective slab length in slab can be controlled as far as possible, Head and Tail Shape is smooth,
Reduce cropping amount, in quick forging machine forging in the prior art general big spindle forging plate blank top crop amount probably 350~
450kg.The protective case can effectively reduce end face center spot temperature, and end centre is 50 DEG C with two edge temperature differences
~80 DEG C, the influence using temperature to metal material metal flow in plastic deformation, edge metal flow is faster than centre
Metal flow makes end face cydariform effectively reduce, more smooth, greatly reduces head sawing amount about 230~310kg.New method
Pure titanium sheet slab lumber recovery can be made to be improved to 94.6% by original 93.3%.
2, product size consistency higher
The use of the protective case of unified specification, i.e., rigid jacket makes product head shape than more consistent, such same specification it is big
Plate blank top crop amount is consistent substantially, in 230~310kg, makes same specification sheet slab dimensional height consistency.
3, production efficiency higher
Using the protective case, pass deformation can be suitably increased on the basis of existing technology, without worrying slab head
Portion is excessive, and it is possible to complete finished product forging in 40~60min, the production time is greatly saved, improves production efficiency.
4, it is that lower process is provided convenience
It using the protective case, may be implemented to the controllable of slab uniform specification, the thus milling for lower process provides
Facility, the phenomenon that prevented to influence finished product product quality because of blank specification disunity.
The use of the provided protective case of the present embodiment, specific embodiment are as follows:
(1) by taking the TA1 titanium ingots of diameter D=φ 1000mm forge the slab of 180*1250*7200-8000mm as an example:
1. titanium number of spindles evidence:Diameter D=φ 1000mm, weight 8670kg.
2. quick forging machine cogging is to 980 ± 20 DEG C of 280~320 × 1310~1340*Lmm, forging temperature
4. quick forging machine is forged to 980 ± 20 DEG C of 185+5 × 1265+5*L mm, forging temperature
5. product cropping amount 440kg
6. forging lumber recovery 94.9%
(2) by taking the TA2 titanium ingots of diameter D=φ 1000mm forge the slab of 180*1250*7200-8000mm as an example:
1. titanium number of spindles evidence:Diameter D=φ 1000mm, weight 8700kg.
2. quick forging machine cogging is to 980 ± 20 DEG C of 280~320 × 1310~1340*Lmm, forging temperature
4. quick forging machine is forged to 980 ± 20 DEG C of 185+5 × 1265+5*L mm, forging temperature
5. product cropping amount 445kg
6. forging lumber recovery 94.9%
(3) slab of 180*1250*7200-8000mm is forged with the TA1 titanium ingots of diameter D=φ 1000mm.
1. titanium number of spindles evidence:Diameter D=φ 1000mm, weight 8600kg.
2. quick forging machine cogging is to 980 ± 20 DEG C of 280~320 × 1310~1340*Lmm, forging temperature
4. quick forging machine is forged to 980 ± 20 DEG C of 185+5 × 1265+5*L mm, forging temperature
5. product cropping amount 432kg
6. forging lumber recovery 95.0%
There is above-described embodiment to can be seen that the protective case that the present embodiment is provided, can effectively reduce slab both ends appearance
The cydariform problem easily occurred reduces sawing amount end to end, ensures the consistency of manufacturing steel ingot.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Manufacturing steel ingot protective case provided by the utility model is described in detail above.It is used herein specifically
A example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand this
The method and its core concept of utility model.It should be pointed out that for those skilled in the art, not departing from
Under the premise of the utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification
It falls into the protection domain of the utility model claims.