CN2370022Y

CN2370022Y - Annealing device without electric spark

Info

Publication number: CN2370022Y
Application number: CN 99206920
Authority: CN
Inventors: 刘占文
Original assignee: Baotou Iron & Steel Design Inst Ministry Of Metallurgical Industry
Current assignee: Baotou Iron & Steel Design Inst Ministry Of Metallurgical Industry
Priority date: 1999-04-30
Filing date: 1999-04-30
Publication date: 2000-03-22
Anticipated expiration: 2009-04-30

Abstract

The utility model relates to an annealing device without electric sparks, belonging to the industry of metal products. The annealing device without electric sparks is particularly suitable for the technology of continuous annealing for producing galvanized iron wires. The annealing device without electric sparks is characterized in that a first electricity conducting roller is arranged inside a contact slot which is provided with an electricity conducting medium. The hard contact between the original iron wires and the first electricity conducting is changed to the soft contact. The contact performance is good. The phenomenon of electric sparks can be eliminated thoroughly. The annealing device without electric sparks is favorable for improving the quality of the anneal of the iron wires. The investment is less.

Description

Do not beat the electric card type annealing device of electrical spark

The utility model belongs to Steel Wire Products Industry, particularly is applicable to a kind of novel annealing device of producing in the continuous annealing process flow process that galvanized wire is the low-carbon (LC) galvanized steel wire.

In recent years, in the continuous annealing operation of producing galvanized wire, extensively adopt the electric card type annealing device, this is a kind of novel heat treatment mode, as shown in Figure 1, be characterized in that iron wire is not by outer heat, but by iron wire itself as conductive heating unit, iron wire 3 orders are passed first conductive rollers 1 and second conductive rollers 2 that is connected with power supply 4, and the iron wire between two conductive rollers utilizes its internal resistance opposing to be heated by the electric current of itself as conductive heating unit, it is electricresistance effect, it is fast that this heat treatment mode has rate of heating, and the heating distance is short, and floor space is little, the thermo-efficiency height, low in the pollution of the environment, maintenance of equipment simply reaches advantages such as production cost is low, is used widely.But, this electric card type annealing device has an open question so far, that is exactly that iron wire is in the electric card type annealing process, because of electrical spark has been hit in iron wire and conductive rollers loose contact, electrical spark wounds the iron wire surface easily, influence its surface quality, and voltage of supply is high more, electric current is big more, the electrical spark phenomenon is serious more, and is big more to iron wire surface damage degree, particularly when the high iron wire of cold conditions hardness and the first conductive rollers loose contact, electrical spark is even more serious, iron wire because the phenomenon on the such electrical spark damage of the forceful action of retractable cable iron wire surface is difficult to avoid, is under some influence the quality of product in continuous treating processes.

In order to guarantee the processing quality of iron wire anneal, reduce between iron wire and conductive rollers and contact the generation electrical spark, adopt at present and increase the cornerite way of iron wire conductive rollers, as shown in Figure 2, between first conductive rollers 1 and second conductive rollers 2, increased a supporting roll 5, adopted this measure, at second conductive rollers, 2 places because iron wire heating deliquescing, electrical spark is eliminated substantially, but can not eliminate the generation of electrical spark between the high iron wire of cold conditions hardness and first conductive rollers.Aforesaid method though reduced the electrical spark phenomenon, can not thoroughly be eliminated.

The purpose of this utility model is to solve the problem that above-mentioned prior art exists, and provides a kind of simple in structure, the electric card type annealing device of not beating electrical spark reasonable in design.

The technical solution of the utility model realizes in the following way, a kind of electric card type annealing device of not beating electrical spark, between first conductive rollers and second conductive rollers, be provided with power supply, iron wire passes first conductive rollers, supporting roll and second conductive rollers in proper order, it is characterized in that: first conductive rollers is placed the contact groove that liquid conducting medium is housed, contact groove and ground insulation.

In the utility model, can before the contact groove, three roller tension controllers be set, make the iron wire operation keep certain force of strain.

Can realize the utility model with following another kind of mode, first conductive rollers is placed water medium contact groove, the welding of contact tank sheet, contact groove and ground insulation.

The utility model is to overcome the deficiencies in the prior art, has thoroughly solved the problem that influences the iron wire surface quality owing to loose contact generation electrical spark, has improved iron wire annealed quality.This device is reasonable in design, and the equipment that increases newly is few and simple in structure, less investment, and especially for the technological transformation of used equipment, benefit is more considerable, and is easy to utilize.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is the prior art synoptic diagram;

Fig. 2 increases the synoptic diagram of cornerite method for existing technology;

Fig. 3 is the utility model synoptic diagram.

Embodiment 1:

A kind of electric card type annealing device of not beating electrical spark, between first conductive rollers 1 and second conductive rollers 2, be provided with power supply 4, iron wire 3 orders of carrying out anneal continuously are by first conductive rollers 1, the supporting roll 5 and second conductive rollers 2, first conductive rollers 1 is placed in the contact groove that water medium is housed, make iron wire 3 become soft contact with hard contact the between first conductive rollers 1, guarantee that its contact is good, eliminate the electrical spark phenomenon takes place between it, wire shorts between two conductive rollers is as the conductor internal resistance, owing to being heated, electricresistance effect reaches the required temperature of anneal, contact groove 6 usefulness steel plates weld, its base is equipped with insulating material, so that insulate with the earth, in contact groove 6 fronts three roller tension controllers 7 are set, make iron wire 3 operations keep certain tension force, in order to increase the cornerite of the iron wire 3 and second conductive rollers 2, supporting roll 5 is not on the line of first conductive rollers 1 and second conductive rollers 2, be heated deliquescing because of iron wire between second conductive rollers 2 and the iron wire 3, increase cornerite and can contact well, electrical spark can not occur.

Embodiment 2:

A kind of electric card type annealing device of not beating electrical spark, other parts are described consistent with embodiment 1, and the conducting medium that difference is to contact in the groove can be the fused solution metal, and this medium is compared with water medium, and cost is higher.

Claims

1, a kind of electric card type annealing device of not playing the electricity cremate, between first conductive rollers [1] and second conductive rollers [2], be provided with power supply [4], iron wire [3] order is by first conductive rollers [1], supporting roll [5] and second conductive rollers [2], it is characterized in that: first conductive rollers [1] is placed the contact groove [6] that liquid conducting medium is housed, contact groove [6] and ground insulation.

2, a kind of electric card type annealing device of not beating electrical spark according to claim 1 is characterized in that: the conducting medium in the contact groove [6] is a water medium.

3, a kind of electric card type annealing device of not beating electrical spark according to claim 1 is characterized in that: contact groove [6] is the steel plate welding, and its base is equipped with and ground insulating insulating material.

4, a kind of electric card type annealing device of not beating electrical spark according to claim 1 is characterized in that: at contact groove [6] three roller tension controllers [7] are set before, make iron wire [3] operation by it keep certain force of strain.