Application of sensors in dialysis machines
Sheet Metal Fabrication Service Processing steps For Sheet Metal Parts - Custom Sheet Metal Fabrication Service Company
10. Assembly. The so-called assembly is to group multiple parts or components together in a certain way to make them into a complete material. One thing that needs to be paid attention to is the protection of the materials, and no scratches. Assembly is the last step in the completion of a material. If the material cannot be used due to scratches, it needs to be reworked and reworked, which will waste a lot of processing man-hours and increase The cost of the item. So pay special attention to the protection of the item.
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In order to provide the patient with the same fluid temperature and body temperature to ensure the safety of the patient, temperature management solutions and pressure sensors are also used in the dialysis machine. Rather than looking for multiple temperature technologies and sensors from multiple suppliers, purchasing heater assemblies and pressure sensors from a single accessory manufacturer not only streamlines the manufacturing process and supply chain, but also simplifies assembly and reduces design time. Give developers more time and energy to research other systems. Platformized sensing provides a complete assembly that meets regulatory requirements and enables the system to meet relevant quality standards.
The heater assembly heats the blood and dialysate to the body temperature before it is reintroduced into the patient. In this process, the heating controller can precisely control the temperature of the dialysate; the circuit board-mounted pressure sensor can measure the flow rate of the fluid exiting and entering the patient, and obtain the dialysate and venous pressure without disturbing the fluid flow. reading. 
Image Note: Honeywell TruStability HSC/SSC–26PC liquid media compatible sensors allow customers to use one of the sensor's ports to access non-corrosive liquid media such as condensation or deionized water, eliminating the need for sensors to be protected by these media. Erosion adds the complexity and cost of protection.
In order to implement the use of a temperature sensor in combination with a temperature adjustment device, the heater assembly needs to be designed with various heating techniques and materials suitable for the design requirements of different dialysis machines. The design of these dialysis machines often requires consideration of different types of heating techniques due to the different size and temperature ranges of the heater assemblies.
The heater assembly should have a variety of sizes, power, mounting options, and temperature monitoring and temperature control capabilities. Because, in the same dialysis machine application, different heater assembly configurations (flat, transparent composite and high temperature) and manufacturing materials (silicon, polyimide film, polyester indium tin oxide, and other dielectric materials) are available. Produce different application options.
Accurate measurement of dialysate and venous pressure is critical for patient safety during dialysis treatment. Pressure sensors require accurate detection of fluid and blood flow pressures to ensure that the pressure is maintained within the applicable range and that overpressure or underpressure conditions are avoided. Because either the overpressure or the low pressure will cause the blood vessel to break or bubbles in the pipeline, respectively.
The best way to get more accurate and faster response time is to place the sensing element as close as possible to the flow of liquid. This requires the use of pressure sensors with liquid media compatibility to reduce the complexity and cost associated with sensor protection design.
In addition, pressure sensors should provide a variety of mounting options to suit different applications. By providing cable assembly options, the sensor platform can be installed in remote locations or products with limited interior space. As a result, designers can place sensors accurately where they can be measured accurately.
1. Design and draw the part drawing of its sheet metal parts, also known as three views. Its function is to express the structure of its sheet metal parts by means of drawings.
2. Draw an unfolded drawing. That is, unfold a part with a complicated structure into a flat piece.
3. Unloading. There are many ways to unload, mainly the following methods:
a. Shearing machine cuts the material. It uses the shearing machine to cut out the length and width dimensions of the expanded drawing. If there are punching and corner cutting, then the punching machine is combined with the die to punch and corner to form.
b. Punch blanking. It is the use of a punch to punch the structure of the flat part after the parts are unfolded on the plate in one or more steps. Its advantages are short labor hours, high efficiency, and can reduce processing costs. It is often used in mass production.
c. NC CNC blanking. When NC blanking, you must first write a Cnc Machining program. That is, use the programming software to write the drawn expanded diagram into a program that can be recognized by the NC CNC machining machine. Let it follow these programs step by step on a piece of iron plate On the top,punch out the structural shape of its flat parts.
d. Laser cutting is the use of laser cutting to cut the structure and shape of the flat piece on an iron plate.
4. Flanging and tapping. Flanging is also called hole extraction, which is to draw a slightly larger hole on a smaller base hole, and then tap the hole. This can increase its strength and avoid slippage. Generally used for sheet metal processing with relatively thin plate thickness. When the plate thickness is large, such as the plate thickness of 2.0, 2.5, etc., we can tap directly without flanging.
5. Punch processing. Generally, punch processing includes punching and cutting corners, punching blanking, punching convex hull, punching and tearing, punching and other processing methods to achieve processing purposes. Its processing requires corresponding molds to complete the operation. There are convex molds for punching convex hulls, and tearing forming molds for punching and tearing.
6. Pressure riveting. As far as our factory is concerned, pressure riveting studs, pressure riveting nuts, pressure riveting screws, etc. are often used. The pressure riveting method is generally completed by a punch or hydraulic pressure riveting machine. Riveted to the sheet metal part.
7. Bending. Bending is to fold 2D flat parts into 3D parts. Its processing requires a folding bed and corresponding bending molds to complete the operation. It also has a certain bending sequence, and the principle is to make the next cut The first fold that does not cause interference will produce the interference back fold.
8. Welding. Welding is the group welding of multiple parts together to achieve the purpose of processing or the edge welding of a single part to increase its strength. The processing parties generally include the following: CO2 gas shielded welding, argon arc welding, Spot welding, robot welding, etc. The selection of these welding methods is based on actual requirements and materials. Generally speaking, CO2 gas shielded welding is used for iron plate welding; argon arc welding is used for aluminum plate welding; robot welding is mainly in-material It is used when the parts are large and the welding seam is long. Such as cabinet welding, robot welding can be used, which can save a lot of tasks and improve work efficiency and welding quality.
9. Surface treatment. Surface treatment generally includes phosphating film, electroplating colorful zinc, chromate, baking varnish, oxidation, etc. Phosphating film is generally used for cold-rolled plates and electrolytic plates, and its function is mainly to plate on the surface of the material. A protective film is applied to prevent oxidation; the second is to enhance the adhesion of its baking paint. Electroplated multicolored zinc is generally treated with cold-rolled plate surface treatment; chromate and oxidation are generally used for surface treatment of aluminum plates and aluminum profiles; its specific surface The choice of treatment method is based on the customer's requirements.
