CN201670856U - Rod sleeve for non-oxidation recrystallization annealing - Google Patents

Abstract

The utility model discloses a rod sleeve for non-oxidation recrystallization annealing. The sleeve comprises a sleeve body, a sleeve cap, a bottom cover, sleeve-stacking frames and an impact-resistant part, the sleeve cap and the bottom cover are respectively arranged on both ends of the sleeve body, the sleeve-stacking frames are arranged on the sleeve body, and the impact-resistant part, which is arranged in the sleeve body and is close to the bottom cover, comprises a protective plate, which is fixed on the inner wall of the sleeve body. Due to the blockage of the impact-resistant part, rods can be prevented from directly impacting the bottom cover, so that the bottom cover can be prevented from being cracked, a sealing cushion can keep the interior of the sleeve body sealed even if the weld seam of the bottom cover is cracked due to repetitive high temperature, and consequently, under the premise of not changing the length of the sleeve body, the non-oxidation recrystallization annealing process on rods is guaranteed.

Description

The bar sleeve pipe that is used for non-oxidation recrystallization annealing

Technical field

The utility model relates to the technology of bar non-oxidation recrystallization annealing, more particularly, relates to a kind of bar sleeve pipe that is used for non-oxidation recrystallization annealing.

Background technology

Recrystallization annealing is that a kind of metal and alloy to process cold deformation processing carries out the annealed method, purpose is for making the metal inside tissue become tiny equi-axed crystal, eliminate strain-hardening, recover the plasticity and the deformability (replying and recrystallize) of metal or alloy.For the non-oxidation recrystallization annealing of alloy bar material, be exactly with the finished product bar behind the drawing deformation, the special-purpose encloses container of packing into---in the sleeve pipe, and after pipe lid sealed, under oxygen free condition, put into square type bell furnace, carry out a kind of thermal treatment process of annealed.

See also shown in Figure 1, the common bar sleeve pipe that is used for non-oxidation recrystallization annealing comprises body 1, bottom 2, pipe cap 3 at present, be welded with several folded pipe frames 4 on the body 1, bottom 2 seal weldings are in body 1 one ends, and also be provided with binding 5 on the bottom 2, be used to reinforce the welding strength of body 1 and base plate, pipe cap 3 is located at body 1 the other end.In bar tubulature process, adopt driving with weight be about one ton, the cold-drawn finished product bar that is about five meters slings to certain altitude, and 1/3 of bar length sent in the pipe by the telescopic opening end, again with the ferrule openings end of slinging of driving a vehicle, make sleeve pipe and horizontal plane form certain included angle, utilize the bar own wt all to slip in the sleeve pipe.But, in the tubulature process, when driving lifting sleeve pipe slips into sleeve pipe with bar, because the action of gravity of bar, can cause huge impact to sleeve pipe bottom 2, cause the bottom 2 and the weld of body 1 cracking to occur, and in the subsequent annealing process, airborne oxygen enters sleeve pipe, causes the failure of non-oxidation recrystallization annealing.In addition, be electric welding because bottom 2 and body 1 adopt, under high temperature action repeatedly, weld seam at first can oxidized attenuation, and then causes frequent cracking, has finally influenced the annealing process of bar.

The utility model content

At the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides a kind of bar sleeve pipe that is used for non-oxidation recrystallization annealing, and this sleeve pipe can reduce the casing shoe cracking, guarantees the quality of anneal.

For achieving the above object, the utility model adopts following technical scheme:

This bar sleeve pipe that is used for non-oxidation recrystallization annealing comprises body, is located at the pipe cap and the bottom at body two ends and be located at folded pipe frame on the body respectively, also comprise the shock resistance parts, be located at the inner and close bottom place of body, the shock resistance parts comprise a protective shield, and protective shield and inboard wall of tube body fix.

Described sleeve pipe also comprises the cushion seal pad, is located between protective shield and the bottom.

The material of described cushion seal pad is a refractory fibre.

Go back five equilibrium on described protective shield one end face and be welded with six gussets, and fixing by gusset and inboard wall of tube body welding.

In technique scheme, the bar sleeve pipe that is used for non-oxidation recrystallization annealing of the present utility model comprises body, is located at the pipe cap and the bottom at body two ends and be located at folded pipe frame on the body respectively, also comprise the shock resistance parts, be located at the inner and close bottom place of body, the shock resistance parts comprise a protective shield, and protective shield and inboard wall of tube body fix.Owing to be subjected to stopping of shock resistance parts, avoided bar directly to impact bottom, thereby can avoid bottom to ftracture, even bottom is when weld cracking takes place in high temperature repeatedly, can the intravital sealing of holding tube by the cushion seal pad, thereby under the prerequisite that does not change body length, guaranteed the effect of bar non-oxidation recrystallization annealing process.

Description of drawings

Fig. 1 is the bar telescopic structural representation of prior art;

Fig. 2 is a bar telescopic local structure sectional view of the present utility model;

Fig. 3 is the structural representation of protective shield of the present utility model.

Embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

Please in conjunction with Fig. 1, shown in Figure 2, bar sleeve pipe and the prior art that is used for non-oxidation recrystallization annealing of the present utility model is basic identical, comprise body 1 equally, be located at the pipe cap 3 and the bottom 2 at body 1 two ends and be located at folded pipe frame 3 on the body 1 respectively, bottom 2 is provided with four bindings 5 that are used to reinforce body 1 and the welding strength of bottom 2.Difference is, this sleeve pipe also comprises the shock resistance parts, the shock resistance parts are located at body 1 inner and close bottom 2 places, comprise a protective shield 6, be located at from bottom 2 five centimeters, protective shield 6 is discoideus structure, and go back five equilibrium on the one end and be welded with six gussets 7, and fixing by gusset 7 with the welding of body 1 inwall.This sleeve pipe also comprises a cushion seal pad 8, is located between protective shield 6 and the bottom 2, and cushion seal pad 8 adopts refractory fibrous material to make.

Adopt sleeve pipe of the present utility model, in the tubulature process, bar is subjected to stopping of shock resistance parts when gliding, avoided bar directly to impact bottom 2, thereby under the prerequisite that does not change body 1 length, can avoid bottom 2 to ftracture, gusset 7 play strengthen and with body 1 fixed effect.And by cushion seal pad 8 is set, not only can play shock absorption, even and at bottom 2 when weld cracking takes place in high temperature repeatedly, can also play sealing function, thereby keep the sealing in the body 1, guaranteed the effect of bar non-oxidation recrystallization annealing process.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (4)

1. bar sleeve pipe that is used for non-oxidation recrystallization annealing comprises body, is located at the pipe cap and the bottom at body two ends and be located at folded pipe frame on the body respectively, it is characterized in that:

Also comprise the shock resistance parts, be located at the inner and close bottom place of body, the shock resistance parts comprise a protective shield, and protective shield and inboard wall of tube body fix.

2. the bar sleeve pipe that is used for non-oxidation recrystallization annealing as claimed in claim 1 is characterized in that:

Described sleeve pipe also comprises the cushion seal pad, is located between protective shield and the bottom.

3. the bar sleeve pipe that is used for non-oxidation recrystallization annealing as claimed in claim 2 is characterized in that:

The material of described cushion seal pad is a refractory fibre.

4. the bar sleeve pipe that is used for non-oxidation recrystallization annealing as claimed in claim 1 is characterized in that:

Go back five equilibrium on described protective shield one end face and be welded with six gussets, and fixing by gusset and inboard wall of tube body welding.

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