Patent Application
20130277897
1. Field of the Invention
The present invention relates to a device for processing surface of steel wire, and more particularly to a device for removing tempering liquid for use after tempering steel wire.
2. Background of the Invention
The tire bead steel wire has high strength, good toughness, excellent fatigue properties and good linearity, is primarily used in the tire edge as a reinforcing skeleton material, and is generally formed by drawing high carbon steel wire rod. To further improve the rust resistance, heat aging resistance, and binding force between rubber, the tire bead steel wire is a bronze-plated steel wire. Prior to plating, the surface of the steel wire usually requires a plating treatment. The surface treatment prior to plating is indeed of particularly importance, in which it is required to remove the stress of steel wire by tempering and treat the surface of steel wire by rinsing. The cleanliness of the surface treatment for the tire bead steel wire determine the quality of the plating layer.
In the current manufacturing of tire bead steel wire, in order to remove the stress in the steel wire, a high temperature lead pot tempering is mostly used in the heat treatment procedure. However, the lead used in such a tempering is volatile, which not only causes air pollution, but also is harmful to the operator's health. Meanwhile, during tempering, the steel wire tends to bring the lead in the furnace to the following rinsing procedure, and causes pollution to the rinsing procedure. Since the lead bath tempering has a very high cost, a technique appears in which a high temperature molten sodium hydroxide alkali liquor replaces the high temperature lead liquor during tempering of steel wire. The cost of sodium hydroxide is much lower than that of lead. However, during tempering, sodium hydroxide tends to attach to the surface of steel wire, and at the end of tempering, the sodium hydroxide molten liquid on the steel wire will condense on the steel wire and will be brought to the following rinsing procedure, so that the consumption of sodium hydroxide increases. Besides, since it is impossible to recover the sodium hydroxide which attaches to the surface of steel wire, this not only causes the waste of sodium hydroxide, but also influences the cleaning effect in the following rinsing procedure, which is also one of the important reasons for which this kind of tempering process can not be promoted. In case a conventional wiping tool is used, as the temperature decreases, the alkali liquor on the surface of steel wire will constantly condense on the wiping tool, so that the wiping tool can not be used for a long time. In addition, the common wiping method can not remove the solid state sodium hydroxide which attaches to the surface of steel wire.
The technical problem to be solved by the present invention is to provide a steel wire tempering liquid wiping device which is capable of efficiently removing attachments on the surface of steel wire.
In order to solve the above technical problem, the present invention proposes a technical solution which is a steel wire tempering liquid wiping device which comprises a shell, wherein a thermal insulation layer is fixedly provided on an inner wall of the shell, the shell contains a wiping cavity, a steel wire inlet and a steel wire outlet are provided on the wall of the shell via which the steel wire after tempering passes through the wiping cavity, a wiping fiber rack is installed in the wiping cavity, crumby tempering liquid wiping fiber is installed on the wiping fiber rack, the tempering liquid wiping fiber is a high temperature resistant fiber, the steel wires pass through the tempering liquid wiping fiber after tempering, at the bottom of the wiping fiber rack a tempering liquid recovery device is arranged, and a heating device is installed in the shell.
In a preferred embodiment, the tempering liquid wiping fiber is selected from the group consisting of high temperature resistant carbon fiber, quartz glass fiber, high silica glass fiber, alumina silicate fiber, or combination thereof.
In a preferred embodiment, the tempering liquid wiping fiber has a softening temperature ≧650° C.
In a preferred embodiment, the tempering liquid is a sodium hydroxide molten liquid.
In a preferred embodiment, the thermal insulation layer comprises a heat insulation layer on the inner wall of the shell, and a heat resistant layer is provided on an inner wall of the heat insulation layer.
In a preferred embodiment, the wiping fiber rack comprises at least two sub-racks for accommodating the tempering liquid wiping fiber, and the tempering liquid wiping fiber is arranged in the sub-racks.
In a preferred embodiment, the heating device comprises heating wires which are arranged to surround the wiping fiber rack.
In a preferred embodiment, the alkali liquor recovery device comprises a liquor receiver arranged under the wiping fiber rack, and a tempering liquid outlet communicating with the liquor receiver is provided on the wall of the shell.
Since the above technical solution is adopted, the steel wire tempering liquid wiping device comprises a shell, wherein a thermal insulation layer is fixedly provided on an inner wall of the shell, the shell contains a wiping cavity, a steel wire inlet and a steel wire outlet are provided on the wall of the shell via which the steel wire after tempering passes through the wiping cavity, a wiping fiber rack is installed in the wiping cavity, crumby tempering liquid wiping fiber is installed on the wiping fiber rack, the tempering liquid wiping fiber is a high temperature resistant fiber, the steel wires pass through the tempering liquid wiping fiber after tempering, at the bottom of the wiping fiber rack a tempering liquid recovery device is arranged, and a heating device is installed in the shell. The steel wires come out from a high temperature tempering furnace, and then enter the steel wire tempering liquid wiping device. Under the action of the heating device, temperature in the wiping cavity can guarantee that sodium hydroxide on the surface of the steel wire is always in a liquid state. After the steel wires pass through the tempering liquid wiping fiber, sodium hydroxide in the liquid state is wiped off and flows into an alkali liquor recovery device. Alkali liquor brought out from the tempering furnace by the steel wires is recovered, which not only enables to avoid the waste of alkali liquor, but also prevents the steel wires from bringing the alkali liquor to a subsequent rinsing procedure, thus influencing the cleaning effect of the steel wires in subsequent procedures.
1: shell;
2: heat insulation layer;
3: heat resistant layer;
4: heating wire;
5: wiping cavity;
6: tempering liquid wiping fiber;
7: liquor receiver;
8: tempering liquid outlet;
9: steel wire inlet;
10: steel wire outlet;
11: thermocouple; and
12: wiping fiber rack.
The present invention will be further described with reference to the accompanying drawings and embodiments. In the following detailed description, some examplary embodiments of the present invention are described only by way of illustration. It is apparent for the ordinary skilled in the art that modifications can be made in various manner to the embodiments as described above without departing from the spirit and scope of the present invention. Thus, the accompanying drawings and description are illustrative in nature, instead of limiting the protection scope of the claims.
As shown in
A heating device is arranged to surround the wiping fiber rack 12, and the heating device is a heating wire 4. An alkali liquor recovery device is arranged under the wiping fiber rack 12. The alkali liquor recovery device comprises a liquor receiver 7 which is arranged under the wiping fiber rack 12. The liquor receiver 7 discharges the recovered alkali liquor into the steel wire tempering furnace through the tempering liquid outlet 8 which passes through the shell 1 and the thermal insulation layer.
The operating principles follow.
After tempering in the tempering furnace, the steel wire enters the steel wire tempering liquid wiping device. As shown in
The basic principles, major features, and advantages of the present invention have been shown and described as above. The skilled in the art will recognize that the present invention should not be limited to the above embodiments, and the above embodiments and the detailed description only illustrate the principles of the present invention. Various variations and modifications can be made to the present invention without departing from the spirit and scope thereof. Such variations and modifications fall within the scope of the present invention as claimed. The scope of the present invention is defined in the appended claims and equivalents thereto.
This application is the U.S. national phase of International Application No. PCT/CN2011/084705, filed on 26 Dec. 2011, the entire contents of which is hereby incorporated by reference.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/CN11/84705 | 12/26/2011 | WO | 00 | 7/5/2013 |
