Self-propagating sintering process of ceramic composite steel pipe
A composite steel pipe, self-propagating technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems that it is difficult to ensure the full realization of thermite centrifugal reaction, so as to improve smoothness and compactness, and is not easy to scale , Reduce the effect of running resistance
Inactive Publication Date: 2011-12-14
扬州恒鑫冶金科技有限公司
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Based on the above factors, we found that the existing technology is difficult to ensure the full realization of thermite centrifugation reaction
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0009] 1. Install and position a steel pipe with a diameter of 50mm, a wall thickness of 6mm and a length of 3500mm;
[0010] 2. Arrange the sintering raw materials evenly in the steel pipe, then install the end cover and turn on the coil;
[0011] 3. Ignite, the raw materials react, and after the flame in the tube is sprayed out from the two ends of the cover, immediately supply oxygen from both ends to the steel pipe for 5 minutes.
Embodiment 2
[0012] Embodiment two: (according to product, at least three embodiments)
[0013] 1. Install and position a steel pipe with a diameter of 30mm, a wall thickness of 5mm and a length of 3500mm;
[0014] 2. Arrange the sintering raw materials evenly in the steel pipe, then install the end cover and turn on the coil;
[0015] 3. Ignite, the raw materials react, and after the flame in the tube is sprayed out from the two ends of the cover, immediately supply oxygen from both ends to the steel pipe for 3 minutes.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a process for producing ceramic composite steel pipes. First install and position the steel pipe, then evenly arrange the sintering raw materials in the steel pipe, then install the end cap, turn on the pipe, ignite, and finally make it, and supply oxygen to the steel pipe for 3-5 minutes at the same time. In the present invention, oxygen is added during sintering, and the technical process is to adjust the gas supply according to the size and length of the pipe diameter before starting the machine. After turning on the machine, drive the air supply pipe rack to the set position, open the electromagnetic pneumatic valve quickly after ignition, and start to supply air into the pipe to achieve the purpose of full sintering, so that the ceramic layer and the steel pipe are firmly combined to improve the surface smoothness of the ceramic layer and The compactness makes the medium not easy to scale in the pipeline and reduces the running resistance of the pipeline. The invention solves the defects that the ceramic layer is easy to fall off and has poor compactness due to lack of oxygen in the steel pipe when the ceramic composite steel pipe is ignited and burned, and partial materials are not fully burned.
Description
technical field [0001] The invention relates to a process for producing ceramic composite steel pipes, in particular to the improvement of a process for producing ceramic composite steel pipes by self-propagating high-temperature synthesis technology. Background technique [0002] Self-propagating high-temperature synthesis technology is a process for producing ceramic composite steel pipes. The existing technology is to put a certain amount of mixed raw materials in the steel pipe, and use Al and Fe to 2 o 3 or Fe 3 o 4 Thermite centrifugal reaction, in the high-speed rotating state of the steel pipe, after ignition, the mixed raw materials rely on exothermic reaction to sinter at high temperature to form a ceramic layer that is tightly attached to the inner wall of the steel pipe. [0003] Due to factors such as raw material purity and layout uniformity, when the above-mentioned technology is implemented, it will be found that the smoothness and compactness of the cera...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14C23C24/08
Inventor 曹振顺乐玉飞
Owner 扬州恒鑫冶金科技有限公司