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Thread protector for large-diameter oil pipe and production method of thread protector

A technology for thread protectors and production methods, which is applied in the direction of grinding machines, grinding/polishing equipment, manufacturing tools, etc., and can solve the problems of insufficient rigidity and strength of thread protectors, inability to process thread protectors, and poor thread processing effects, etc. Achieve the effects of improving the scope of application, enhancing rigidity and strength, and improving processing efficiency

Inactive Publication Date: 2022-03-11
ANHUI NINE COWS PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing thread protectors have insufficient rigidity and strength, resulting in low protection during use. During the production process of the thread protector, the thread protector needs to be threaded. The existing thread protector processing device has a relatively low effect on thread processing. Poor, low efficiency, and unable to process thread protectors of different sizes, there are great limitations

Method used

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  • Thread protector for large-diameter oil pipe and production method of thread protector
  • Thread protector for large-diameter oil pipe and production method of thread protector
  • Thread protector for large-diameter oil pipe and production method of thread protector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for producing a thread protector for large-diameter oil pipes, comprising the following steps:

[0039] Step 1. Prepare raw materials, including polyvinyl chloride, calcium stearate, modified diamond, polyacrylate emulsion, tetraethyl orthosilicate, aluminum silicate fiber, and reinforcing additives;

[0040] Step 2, adding polyvinyl chloride, calcium stearate, modified diamond, and polyacrylate emulsion into a blender for mixing;

[0041] Step 3. Add tetraethyl orthosilicate, aluminum silicate fibers and reinforcement additives to the mixer in step 2 and continue mixing. After mixing, add them to the mixer and cool to room temperature;

[0042] Step 4: Feed the above-mentioned obtained materials into a twin-screw extruder for extrusion and molding through a mold to obtain a pre-finished product, put the pre-finished product into a processing device for grinding and thread processing, and obtain the thread protection for the large-diameter oil pipe device.

...

Embodiment 2

[0049] A method for producing a thread protector for large-diameter oil pipes, comprising the following steps:

[0050] Step 1. Prepare raw materials, including polyvinyl chloride, calcium stearate, modified diamond, polyacrylate emulsion, tetraethyl orthosilicate, aluminum silicate fiber, and reinforcing additives;

[0051] Step 2, adding polyvinyl chloride, calcium stearate, modified diamond, and polyacrylate emulsion into a blender for mixing;

[0052] Step 3. Add tetraethyl orthosilicate, aluminum silicate fibers and reinforcement additives to the mixer in step 2 and continue mixing. After mixing, add them to the mixer and cool to room temperature;

[0053] Step 4: Feed the above-mentioned obtained materials into a twin-screw extruder for extrusion and molding through a mold to obtain a pre-finished product, put the pre-finished product into a processing device for grinding and thread processing, and obtain the thread protection for the large-diameter oil pipe device.

...

Embodiment 3

[0060] A method for producing a thread protector for large-diameter oil pipes, comprising the following steps:

[0061] Step 1. Prepare raw materials, including polyvinyl chloride, calcium stearate, modified diamond, polyacrylate emulsion, tetraethyl orthosilicate, aluminum silicate fiber, and reinforcing additives;

[0062] Step 2, adding polyvinyl chloride, calcium stearate, modified diamond, and polyacrylate emulsion into a blender for mixing;

[0063] Step 3. Add tetraethyl orthosilicate, aluminum silicate fibers and reinforcement additives to the mixer in step 2 and continue mixing. After mixing, add them to the mixer and cool to room temperature;

[0064] Step 4: Feed the above-mentioned obtained materials into a twin-screw extruder for extrusion and molding through a mold to obtain a pre-finished product, put the pre-finished product into a processing device for grinding and thread processing, and obtain the thread protection for the large-diameter oil pipe device.

...

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Abstract

The invention relates to a thread protector for a large-diameter oil pipe and a production method thereof.The production method of the thread protector for the large-diameter oil pipe comprises the following steps that firstly, raw materials including polyvinyl chloride, calcium stearate, modified diamond, polyacrylate emulsion, tetraethoxysilane, aluminum silicate fiber and a reinforcing auxiliary are prepared; 2, polyvinyl chloride, calcium stearate, modified diamond and polyacrylate emulsion are added into a mixer to be mixed; step 3, adding tetraethoxysilane, aluminum silicate fiber and a reinforcing auxiliary agent into the mixer in the step 2, continuously mixing, adding into a cold mixer after mixing, and cooling to room temperature; and 4, the obtained materials are fed into a double-screw extruder to be extruded and formed through a mold, a pre-finished product is obtained, the pre-finished product is put into a machining device to be subjected to grinding and thread machining, and the thread protector for the large-diameter oil pipe is obtained.

Description

technical field [0001] The invention relates to the technical field of thread protectors, in particular to a thread protector for large-diameter oil pipes and a production method thereof. Background technique [0002] Thread protectors refer to protective sleeves used to protect threads and seals during handling, transportation and storage. During the transportation of steel pipes, it is very easy to cause damage to the internal thread of the pipe end. In order to protect the internal thread of the pipe head, a thread protector is required. [0003] The existing thread protectors have insufficient rigidity and strength, resulting in low protection during use. During the production process of the thread protector, the thread protector needs to be threaded. The existing thread protector processing device has a relatively low effect on thread processing. Poor, low efficiency, and unable to process thread protectors of different sizes, there are great limitations. [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L33/04C08K5/098C08K9/06C08K3/04C08K7/10C08K5/18C08K5/5415B24B19/22B24B1/00
CPCC08L27/06B24B19/22B24B1/00C08L2203/18C08L33/04C08K5/098C08K9/06C08K3/04C08K7/10C08K5/18C08K5/5415
Inventor 朱业媛朱修斌朱业锐
Owner ANHUI NINE COWS PLASTIC TECH