阅读说明：本技术 一种中空锚杆加工方法 (Hollow anchor rod processing method ) 是由 陈久旺 于 2019-12-09 设计创作，主要内容包括：本发明提供一种中空锚杆加工方法,所述中空锚杆加工用到的材料和装置包括：热轧无缝圆钢、超音频感应加热器、穿孔装置、滚轧装置、喷淋装置、热处理装置,所述中空锚杆加工方法的步骤为：将热轧无缝圆钢放入超音频感应加热器中加热,然后再进一步加热后放入穿孔装置进行穿孔处理,之后进行保温处理,保温处理后进行降温；降温后将穿孔的热轧圆钢放入滚轧装置中进行变形处理,压轧出螺纹状；压轧后送入喷淋装置中进行连续喷淋,保证穿孔的热轧圆钢喷淋均匀；最后将穿孔的热轧圆钢放入热处理装置进行热处理,得到成品。本发明制作的中空锚杆成本较低,且经过喷淋装置喷淋后提高了表面的硬度,进行热处理后中空锚杆具有很高的强度和较高的延伸率。(The invention provides a method for processing a hollow anchor rod, wherein the materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps: putting the hot-rolled seamless round steel into a superaudio induction heater for heating, then further heating, putting into a perforating device for perforating treatment, then carrying out heat preservation treatment, and cooling after the heat preservation treatment; after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and rolling to form a thread shape; after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed; and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product. The hollow anchor rod manufactured by the invention has lower cost, the surface hardness is improved after the spraying of the spraying device, and the hollow anchor rod has higher strength and higher elongation after the heat treatment.)

1. A method for processing a hollow anchor rod is characterized in that materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps:

s1: putting the hot-rolled seamless round steel into a superaudio induction heater to be heated at a certain temperature;

s2: further heating the heated hot-rolled seamless round steel, putting the heated hot-rolled seamless round steel into a perforating device for perforating, performing heat preservation treatment on the perforated hot-rolled round steel after perforating, and performing cooling treatment after heat preservation treatment;

s3: after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and pressing the perforated hot-rolled round steel into a thread shape;

s4: after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed;

s5: and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product.

2. A method of machining a hollow bolt according to claim 1, characterised in that the heating temperature in the ultrasonic induction heater is 970 ℃.

3. A method for machining a hollow anchor rod as claimed in claim 1, wherein the further heating is performed at 1150-1200 ℃.

4. A hollow anchor rod processing method according to claim 1, characterized in that the time of the heat preservation treatment is 5-7 min.

5. A method for processing a hollow anchor rod as claimed in claim 1, wherein the temperature of the cooling process is 500-700 ℃.

6. A hollow anchor rod processing method according to claim 1, wherein the heat treatment is mainly a water cooling treatment, and the water pressure and the water amount of the heat treatment device should be adjusted when the heat treatment is performed.

Technical Field

The invention belongs to the technical field of hollow anchor rod processing methods, and particularly relates to a hollow anchor rod processing method.

Background

With the continuous development of railway transportation industry in China, particularly the current increasingly popular elevated railways, the acceptance requirements of basic engineering are higher and higher, so that higher requirements are provided for the quality of various engineering materials, higher requirements are provided for the mechanical properties such as tensile strength, elongation and the like of the hollow anchor rod in the current railway standard in China, for example, the hollow anchor rod in the railway standard adopts a wall thickness of 7 mm and 3.14 kg per meter, if the strength requirements in the railway standard are met according to the existing anchor rod hot rolling type production mode, the production can only be realized by increasing the consumption of steel, namely, a thicker steel pipe is adopted as a hot rolling raw material, the anchor rod produced by the mode meets the mechanical properties specified in the railway standard, but the internal space is smaller due to the increase of the wall thickness of the hollow anchor rod, and the use performance of the anchor rod is influenced, the grouting pressure attenuation loss is huge due to the difficulty of grouting inside the hollow anchor rod, and meanwhile, the wall thickness of the hollow anchor rod is increased to ensure the strength of the hollow anchor rod, so that a large amount of steel is wasted.

Because of the cavity stock can follow body of rod hole slip casting, it can realize pressure slip casting through cooperating with backing plate, nut, grout stopping stopper etc. to its slip casting effect is superior to the steel bar stock, and the cavity body of rod can unite into one with drilling, slip casting, anchor with the drill bit cooperation, and the tip anchor can be realized to the cooperation of cavity stock expansion shell spearhead, and a plurality of advantages of cavity stock make its use more and more extensive, and replaced traditional steel bar stock gradually in many fields. However, as the use environment of the hollow anchor rod is more and more demanding, the requirements for the comprehensive performance of the hollow anchor rod are higher and higher, and not only is very high strength required, but also higher elongation is required.

Disclosure of Invention

In order to solve the technical problem, the invention provides a method for processing a hollow anchor rod, wherein the materials and devices used for processing the hollow anchor rod comprise: the processing method of the hollow anchor rod comprises the following steps of hot-rolling seamless round steel, a superaudio induction heater, a perforating device, a rolling device, a spraying device and a heat treatment device, wherein the processing method of the hollow anchor rod comprises the following steps:

s1: putting the hot-rolled seamless round steel into a superaudio induction heater to be heated at a certain temperature;

s2: further heating the heated hot-rolled seamless round steel, putting the heated hot-rolled seamless round steel into a perforating device for perforating, performing heat preservation treatment on the perforated hot-rolled round steel after perforating, and performing cooling treatment after heat preservation treatment;

s3: after cooling, putting the perforated hot-rolled round steel into a rolling device for deformation treatment, and pressing the perforated hot-rolled round steel into a thread shape;

s4: after rolling, sending the rolled round steel into a spraying device for continuous spraying, and ensuring that the punched hot rolled round steel is uniformly sprayed;

s5: and finally, putting the perforated hot-rolled round steel into a heat treatment device for heat treatment to obtain a finished product.

Preferably, the heating temperature in the ultrasonic frequency induction heater is 970 ℃.

Preferably, the further heating temperature is 1150-1200 ℃.

Preferably, the time of the heat preservation treatment is 5-7 min.

Preferably, the temperature during the temperature reduction treatment is 500-700 ℃.

Preferably, the heat treatment is mainly a water cooling treatment, and the water pressure and the water amount of the heat treatment apparatus should be adjusted during the heat treatment.

Compared with the prior art, the invention has the beneficial effects that: the manufactured hollow anchor rod is low in cost, the surface hardness is improved after the spraying of the spraying device, and the hollow anchor rod has high strength and high elongation after heat treatment.

Drawings

Fig. 1 is a drawing of implementation steps of a hollow anchor rod machining method.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further described below: