阅读说明：本技术 一种增强耐机磨性能的电梯触头及其加工方法 (Elevator contact for enhancing machine-wear resistance and processing method thereof ) 是由 吴道松 邵雨昕 于 2019-01-10 设计创作，主要内容包括：本发明公开了一种增强耐机磨性能的电梯触头及其加工方法,所述增强耐机磨性能的电梯触头包括触头、电接触区域、前电接触区域和电接触区域底部,电接触区域包括前电接触区域和电接触区域底部,前电接触区域材质为银镍合金,并且银层厚度降低50％,电接触区域底部材质为紫铜,本发明结构简单,加工便捷,通过电接触区材料的改变,降低了生产升本,提高了安全性。(The invention discloses an elevator contact for enhancing the mechanical wear resistance and a processing method thereof, wherein the elevator contact for enhancing the mechanical wear resistance comprises a contact, an electric contact area, a front electric contact area and an electric contact area bottom, the electric contact area comprises the front electric contact area and the electric contact area bottom, the front electric contact area is made of silver-nickel alloy, the thickness of a silver layer is reduced by 50%, and the electric contact area bottom is made of red copper.)

1. A processing method of an elevator contact with enhanced machine abrasion resistance is characterized by comprising the following steps:

(1) purchasing the special-shaped material, designing the specification of the special-shaped material to be purchased according to the requirement of a customer, wherein the specification comprises the space, the groove width, the groove depth, the total thickness and the like;

(2) surface treatment, namely removing surface oxide skin of the raw materials by 15 to 20 percent of dilute sulfuric acid, and performing mechanical polishing treatment to achieve a composite use condition;

(3) solid-phase compounding, namely performing solid-phase rolling on the planned silver-nickel alloy and the processed copper strip at the temperature of 750 ℃, the tape-moving speed of 1.2m/min and the compound deformation of 45-55%;

(4) diffusion annealing is carried out at the temperature of 650 ℃ and the tape-moving speed of 1.5 m/min;

(5) rolling, namely processing the product to the thickness of a finished product through a four-roller finishing mill according to the drawing requirements;

(6) slitting, namely slitting the product according to the design by using a precision slitting machine so as to meet the use requirement of a stamping process; .

(7) And the composite strip is stamped by using a cold stamping die, so that the appearance of the composite strip is ensured, and the size meets the requirements of customers.

2. An elevator contact with enhanced mechanical wear resistance made according to the method of claim 1, wherein the elevator contact with enhanced mechanical wear resistance comprises the contact (1), the electrical contact region (2), the front electrical contact region (21) and the electrical contact region bottom (22), and the electrical contact region (2) comprises the front electrical contact region (21) and the electrical contact region bottom (22).

3. The elevator contact with enhanced wear resistance of claim 1, wherein the front electrical contact area (21) is made of silver-nickel alloy.

4. The elevator contact with enhanced wear resistance of claim 1, wherein the bottom (22) of the electrical contact area is copper.

Technical Field

The invention particularly relates to an elevator contact with enhanced machine-wear resistance and a processing method thereof.

Background

Because the contact is the important part of elevator door opening and closing contact, from design, selection of material, processing, assembly any link is very important, because market competition is bigger and bigger, the profit is lower and lower, it is imperative to reduce the cost of selling under the condition of satisfying safe use. This patent is optimized the structure and the material of contact product on current technology, is satisfying safe handling's the condition and reducing customer's purchasing cost and improving life.

Disclosure of Invention

In order to solve the problems, the invention provides the elevator contact with the enhanced machine-wear resistance, which has the advantages of simple structure, convenience in processing, low production cost and high safety.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the elevator contact with the enhanced mechanical wear resistance comprises a contact, an electric contact area, a front electric contact area and an electric contact area bottom, wherein the electric contact area comprises the front electric contact area and the electric contact area bottom, the front electric contact area is made of silver-nickel alloy, the thickness of a silver layer is reduced by 50%, and the electric contact area bottom is made of red copper.

The improved post-processing technology of the invention is the same as the processing technology of the general electric shock: copper strip → surface treatment → solid phase compounding → diffusion annealing → rolling → slitting → stamping → post treatment.

The invention has the following beneficial effects:

the general contact is because the silver layer material is pure silver, because the pure silver body is softer to the resistant machine grinds performance is relatively poor, has the silver layer thickness design surplus in the in-service use in-process, extravagant material scheduling problem. According to the novel silver-nickel contact structure, the silver-nickel alloy is selected as the electric contact layer, the thickness of the silver layer is reduced by 50%, under the same use environment, the electrical property difference is basically not different, and the wear resistance of the contact surface is greatly enhanced.

Drawings

FIG. 1 is a block diagram of the present invention.

1-a contact; 2-an electrical contact area; 21-front electrical contact area; 22-bottom of electrical contact area.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments.

As shown in fig. 1, the elevator contact with the enhanced mechanical wear resistance comprises a contact 1, an electrical contact area 2, a front electrical contact area 21 and an electrical contact area bottom 22, wherein the electrical contact area 2 comprises the front electrical contact area 21 and the electrical contact area bottom 22, the front electrical contact area 21 is made of silver-nickel alloy, the thickness of a silver layer is reduced by 50%, and the electrical contact area bottom 22 is made of red copper.

The processing steps of the invention are as follows:

1. and (3) purchasing the special-shaped material, wherein the specification of the special-shaped material to be purchased is designed according to the requirement of a customer, and comprises the space, the groove width, the groove depth, the total thickness and the like.

2. Surface treatment, namely removing surface oxide skin of the raw materials by 15 to 20 percent of dilute sulfuric acid, and mechanically polishing the raw materials to achieve the composite use condition.

3. And (3) solid-phase compounding, namely performing solid-phase rolling on the planned silver-nickel alloy and the processed copper strip at the temperature of 750 ℃, the tape-moving speed of 1.2m/min and the compound deformation of 45-55%.

4. Diffusion annealing is carried out at the temperature of 650 ℃ and the tape-moving speed of 1.5 m/min.

5. And rolling, namely processing the product to the thickness of a finished product through a four-roller finishing mill according to the drawing requirements.

6. And slitting, namely slitting the product according to design by using a precise slitting machine so as to meet the requirement of a stamping process.

7. And the composite strip is stamped by using a cold stamping die, so that the appearance of the composite strip is ensured, and the size meets the requirements of customers.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.