阅读说明：本技术 复合波浪筛网制作工艺 (Manufacturing process of composite wave screen ) 是由 邹海兵 于 2020-05-11 设计创作，主要内容包括：本发明提供一种复合波浪筛网制作工艺,其具体操作步骤在于：步骤一:根据要求先对筛网样式、轮廓进行设计,然后进行模板制作；步骤二：根据模板选取半弧形钢管,将绷装根据模板样式焊接成框架结构；本发明在现今原有生产技术上改进了改进,在波浪筛网四周先固定塑料条,然后将其固定在框架内进行初步固定在进行热融合,提高了本发明热融处理的效果,避免筛网在热熔时跑偏,提高了本发明生产效果,而且本发明生产出来的波浪形筛网,通过塑料条、热熔双重固定,提高了波浪筛网的稳固性,避免波浪筛网在使用时发生损坏。(The invention provides a manufacturing process of a composite wave screen, which comprises the following specific operation steps: firstly, designing the pattern and the outline of a screen mesh according to requirements, and then manufacturing a template; step two: selecting a semi-arc steel pipe according to a template, and welding the stretched steel pipe into a frame structure according to the template pattern; the invention improves the prior production technology, the plastic strips are firstly fixed on the periphery of the wave screen, and then the wave screen is fixed in the frame for preliminary fixation for thermal fusion, thereby improving the effect of thermal fusion treatment of the invention, avoiding the deviation of the screen during hot melting, improving the production effect of the invention, and the wave screen produced by the invention improves the stability of the wave screen through double fixation of the plastic strips and the hot melting, and avoiding the damage of the wave screen during use.)

1. A manufacturing process of a composite wave screen comprises the following specific operation steps:

firstly, designing the pattern and the outline of a screen mesh according to requirements, and then manufacturing a template;

step two: selecting a semi-arc steel pipe according to a template, and welding the stretched steel pipe into a frame structure according to the template pattern;

step three: performing injection molding treatment on the frame structure formed in the step two, preparing injection molding materials selected in the injection molding treatment process according to the proportion of 70-80% of the modified materials and 15-35% of the glass fibers, and injecting injection molding material powder into the formed frame structure after the preparation is completed to complete the frame;

step four: manufacturing a filter screen, pressing the filter screen according to requirements, pressing into a wave shape, then cutting the filter screen according to the size of the frame, finishing cutting of the filter screen for later use, and preparing N pieces of screen cloth;

step five: folding the edges of the screen cloth along the hole groove handwriting by using a sewing machine and sewing 2 threads;

step six: placing the plastic strips into the sewn hems, installing the draw hook strips at two ends of the adjacent plastic strips to stretch the screen, then fixing the stretched wavy screen on the frame,

step seven: putting the fixed wave screen and the frame on a hot melting machine, and carrying out compaction hot melting treatment through a pressing plate;

step eight: and (5) curing the frame structure and the filter screen subjected to the hot melting treatment in the step seven at normal temperature for 60-80s, and then performing burr repairing on the fixed filter screen.

2. The process of claim 1, wherein the hot-melt press platen has a corrugated configuration.

3. The process for manufacturing a composite wave screen cloth according to claim 1, wherein the temperature for the hot melting treatment is 200-245 ℃, the time is 70-85s, and the normal pressure is 1.0 Pa.

4. The manufacturing process of the composite wave screen cloth according to claim 1, wherein the composite wave screen cloth is composed of a frame, a bottom plate, a screen cloth and plastic strips, wherein the inside of the frame is provided with folded edges all around, the bottom plate is arranged in the frame and is of a semi-arc structure, the plastic strips are bound on the periphery of the screen cloth and are fixed in the folded edges, and the screen cloth is thermally compounded on the bottom plate.

5. The manufacturing process of the composite wave screen cloth according to claim 4, wherein the screen cloth is N layers, N is more than or equal to 1, and the screen cloth is installed in a cross mode.

Technical Field

The invention relates to the field of screen mesh manufacturing, in particular to a manufacturing process of a composite wave screen mesh.

Background

The drilling fluid vibrating screen is a key device capable of processing the drilling fluid at full flow in a solid control system, and mainly removes rock debris and other harmful solid-phase particles in the drilling fluid through a screen. The screen is a quick-wear part of the vibrating screen, and the reliability and the service life of the screen are the keys of whether the whole vibrating screen can continuously work or not. The service life of the screen mesh manufactured by different structural forms and different bonding technologies is different. The short one is 3-5 days, and the long one is two or three months. In the process of drilling in an oil field, once a screen of the vibrating screen is damaged, the drilling must be stopped and replaced, otherwise serious accidents such as drilling blockage at the bottom of a well and the like can occur.

Disclosure of Invention

According to the technical problem, the invention provides a manufacturing process of a composite wave screen, which comprises the following specific operation steps:

firstly, designing the pattern and the outline of a screen mesh according to requirements, and then manufacturing a template;

step two: selecting a semi-arc steel pipe according to a template, and welding the stretched steel pipe into a frame structure according to the template pattern;

step three: performing injection molding treatment on the frame structure formed in the step two, preparing injection molding materials selected in the injection molding treatment process according to the proportion of 70-80% of the modified materials and 15-35% of the glass fibers, and injecting injection molding material powder into the formed frame structure after the preparation is completed to complete the frame;

step four: manufacturing a filter screen, pressing the filter screen according to requirements, pressing into a wave shape, then cutting the filter screen according to the size of the frame, finishing cutting of the filter screen for later use, and preparing N pieces of screen cloth;

step five: folding the edges of the screen cloth along the hole groove handwriting by using a sewing machine and sewing 2 threads;

step six: placing the plastic strips into the sewn hems, installing the draw hook strips at two ends of the adjacent plastic strips to stretch the screen, then fixing the stretched wavy screen on the frame,

step seven: putting the fixed wave screen and the frame on a hot melting machine, and carrying out compaction hot melting treatment through a pressing plate; step eight: and (5) curing the frame structure and the filter screen subjected to the hot melting treatment in the step seven at normal temperature for 60-80s, and then performing burr repairing on the fixed filter screen.

The hot melting machine pressing plate is of a wave-shaped structure.

The temperature for hot melting treatment is 200-245 ℃, the time is 70-85s, and the normal pressure is 1.0 Pa.

The composite wave screen is composed of a frame, a bottom plate, a screen and plastic strips, wherein folded edges are arranged on the periphery of the inner side of the frame, the bottom plate is arranged in the frame and is of a semi-arc structure, the plastic strips are bound on the periphery of the screen and are fixed in the folded edges, and the screen is thermally composited on the bottom plate.

The screen cloth is N layers, N is more than or equal to 1, and the screen cloth is installed in a crossed mode.

The invention has the beneficial effects that: the invention improves the prior production technology, the plastic strips are firstly fixed on the periphery of the wave screen, and then the wave screen is fixed in the frame for preliminary fixation for thermal fusion, thereby improving the effect of thermal fusion treatment of the invention, avoiding the deviation of the screen during hot melting, and improving the production effect of the invention.

Detailed Description