阅读说明：本技术 一种母线槽中连接铜排的硫化工艺 (Vulcanization process for connecting copper bar in bus duct ) 是由 周桂根 周涛 王宽 陈思远 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种母线槽中连接铜排的硫化工艺,包括第一次组装、喷砂、酸洗、水洗、烘干、刷镀、第二次组装、预热、硫化和固化,其中第一次组装包括通过紧固螺栓将两个铜排连接在一起,连接面的接缝处用焊料进行焊接密封；水洗包括将水加热至50-80摄氏度并雾化,再对安装在吊具上的铜排进行表面清洗；本发明中将需要连接的两个铜排进行预组装,并为了防止铜排之间出现硫化层,还采用焊接的方式,将两者有效的连接起来,并对连接面进行密封处理,以此为基础,再进行硫化。硫化后,紧固螺栓的表面同时形成硫化层,以防止紧固螺栓处的漏电。处理完成后,同等距离的导体之间的电气间隙和爬电距离均远优于现有产品。(The invention discloses a vulcanization process of connecting copper bars in a bus duct, which comprises the steps of primary assembly, sand blasting, acid pickling, water washing, drying, brush plating, secondary assembly, preheating, vulcanization and solidification, wherein the primary assembly comprises the steps of connecting two copper bars together through a fastening bolt, and welding and sealing the joint of the connecting surfaces by using welding materials; the water washing comprises the steps of heating water to 50-80 ℃, atomizing, and then cleaning the surface of the copper bar arranged on the lifting appliance; according to the invention, two copper bars to be connected are preassembled, and in order to prevent a vulcanized layer from appearing between the copper bars, the two copper bars are effectively connected by adopting a welding mode, and the connection surface is sealed and vulcanized on the basis of the welding mode. After vulcanization, the surface of the fastening bolt simultaneously forms a vulcanized layer to prevent electric leakage at the fastening bolt. After the treatment is finished, the electric clearance and the creepage distance between the conductors with the same distance are far superior to those of the existing products.)

1. A vulcanization process for connecting copper bars in a bus duct is characterized by comprising the following steps:

firstly, assembling for the first time: connecting the two copper bars together through a fastening bolt, and welding and sealing the joint of the connecting surfaces by using welding materials;

secondly, sand blasting: placing the assembled copper bar in a sand blasting machine, and performing surface sand blasting treatment;

thirdly, acid washing: mounting the copper bar on a lifting appliance, integrally placing the copper bar in a pickling tank, and cleaning the surface of the copper bar by ultrasonic cleaning;

fourthly, washing with water: heating water to 50-80 ℃, atomizing, and cleaning the surface of a copper bar arranged on a lifting appliance;

fifthly, drying: drying the copper bar until the surface of the copper bar is dry;

sixthly, brush plating: arranging copper in a copper bar brush plating machine for surface brush plating;

seventhly, assembling for the second time: wrapping the two ends of the copper bar by using a heat-shrinkable sleeve;

eighthly, preheating: preheating the copper bar and thermally shrinking the heat-shrinkable sleeve;

ninthly, vulcanization: conveying the preheated copper bar into a vulcanizing chamber for vulcanizing;

tenthly, curing: and (4) conveying the vulcanized copper bar back to the drying box for heating and curing treatment.

2. The vulcanization process of the connecting copper bar in the bus duct according to claim 1, wherein in the fourth step, alcohol is further mixed in the atomized water.

3. The vulcanization process for the connecting copper bar in the bus duct according to claim 1, wherein the solder in the first step is tin.

4. The vulcanization process of the connecting copper bar in the bus duct according to claim 1, wherein the first step further comprises polishing and cleaning the weld joint.

5. The vulcanization process of the connection copper bar in the bus duct according to claim 1, wherein step six comprises brush plating of electric cleaning solution, intermediate water cleaning and electroplating solution on the surface of the copper bar in sequence.

Technical Field

The invention relates to a vulcanization process of a connecting copper bar in a bus duct.

Background

The copper bar is also called as copper busbar, is mainly made of copper material, has a round-angle rectangular cross section, is generally used in the power transmission line of large-scale commercial buildings and replaces the traditional cable for electric energy transmission.

In order to avoid the short circuit between the copper bars or the contact between people or small animals and the charged copper bars, the surface of the copper bars is usually required to be vulcanized to obtain an insulating surface,

however, the conventional vulcanization treatment is often long in processing period, the surface is seriously damaged or is easily bulged after the treatment, and the surface insulation treatment for the fastening bolt is often not involved.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a vulcanization process for connecting copper bars in a bus duct.

A vulcanization process for connecting copper bars in a bus duct comprises the following steps:

firstly, assembling for the first time: the two copper bars are connected together through the fastening bolt, the joint of the connecting surface is welded and sealed by using welding flux, and after the sealing is finished, external objects cannot enter the connecting surface from the joint;

secondly, sand blasting: placing the assembled copper bar in a sand blasting machine, and performing surface sand blasting treatment;

thirdly, acid washing: mounting the copper bar on a lifting appliance, integrally placing the copper bar in a pickling tank, and cleaning the surface of the copper bar by ultrasonic cleaning;

fourthly, washing with water: heating water to 50-80 ℃, atomizing, and cleaning the surface of a copper bar arranged on a lifting appliance;

fifthly, drying: drying the copper bar until the surface of the copper bar is dry;

sixthly, brush plating: arranging copper in a copper bar brush plating machine for surface brush plating;

seventhly, assembling for the second time: wrapping the two ends of the copper bar by using a heat-shrinkable sleeve;

eighthly, preheating: preheating the copper bar and thermally shrinking the heat-shrinkable sleeve;

ninthly, vulcanization: conveying the preheated copper bar into a vulcanizing chamber for vulcanizing;

tenthly, curing: and (4) conveying the vulcanized copper bar back to the drying box for heating and curing treatment.

Preferably, in the fourth step, the atomized water is mixed with alcohol.

Preferably, the solder in the first step is tin.

Preferably, the step one further comprises polishing and cleaning the welding seam.

Preferably, the sixth step comprises the following steps of brush plating of the electric cleaning solution, intermediate water cleaning and brush plating of the electroplating solution on the surface of the copper bar in sequence. Through the brush plating of cubic, can effectually soak the plating solution to the copper bar to obtain the better vulcanization layer of joint strength.

Has the advantages that:

1. through sandblast, pickling, washing and stoving, can effectually obtain the copper bar that the surface cleanliness factor is high to the part that probably drops on copper bar surface and the whole sanitization of dirt in the surperficial deep hole, take place to swell or the phenomenon that drops in the sulphide layer on later stage copper bar surface in long-term the use.

2. Different from the traditional method for vulcanizing a single copper bar, the method for vulcanizing the copper bars in the invention pre-assembles two copper bars to be connected, effectively connects the two copper bars in a welding mode in order to prevent a vulcanized layer from appearing between the copper bars, and carries out sealing treatment on the connecting surface, thus carrying out vulcanization.

After vulcanization, the surface of the fastening bolt simultaneously forms a vulcanized layer to prevent electric leakage at the fastening bolt. After the treatment is finished, the electric clearance and the creepage distance between the conductors with the same distance are far superior to those of the existing products.

Drawings

FIG. 1 is a schematic view of a first assembly of connecting copper bars in a bus duct;

1. copper bar 2, fastening bolt.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1, a vulcanization process of a connecting copper bar in a bus duct comprises the following steps:

firstly, assembling for the first time: connecting the two copper bars 1 together through a fastening bolt 2, welding and sealing the joint of the connecting surfaces by using tin, and polishing and cleaning the joint after welding;

secondly, sand blasting: placing the assembled copper bar 1 in a sand blasting machine, and performing surface sand blasting treatment;

thirdly, acid washing: the copper bar 1 is installed on a lifting appliance, then the whole copper bar is placed in a pickling tank, and the surface of the copper bar is cleaned through ultrasonic cleaning;

fourthly, washing with water: heating the mixed solution of water and alcohol to 50-80 ℃, atomizing, and cleaning the surface of the copper bar 1 arranged on the lifting appliance;

fifthly, drying: drying the copper bar 1 until the surface of the copper bar 1 is dry;

sixthly, brush plating: putting the copper bar 1 in a copper bar brush plating machine, and sequentially carrying out electric cleaning liquid brush plating, intermediate water cleaning and electroplating liquid brush plating on the surface of the copper bar 1;

seventhly, assembling for the second time: wrapping the two ends of the copper bar by using a heat-shrinkable sleeve;

eighthly, preheating: preheating the copper bar and thermally shrinking the heat-shrinkable sleeve;

ninthly, vulcanization: sending the preheated copper bar 1 into a vulcanizing chamber for vulcanizing;

tenthly, curing: and (4) conveying the vulcanized copper bar 1 back to the drying box for heating and curing treatment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.