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Manufacturing technique of blade for blood bag

A manufacturing process and blade technology, which is applied in the field of blood bag blade manufacturing technology, can solve the problems of high cost, metal cutting wear resistance to be improved, etc., and achieve the effect of easy cutting, tight connection parts and high material strength

Inactive Publication Date: 2017-10-20
KUNSHAN YULI METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology needs to use current control, the cost is high, the wear resistance of metal cutting needs to be improved, and the tool needs to be replaced frequently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This embodiment is a blood bag blade manufacturing process, including the following steps:

[0017] S1, using alumina as the base material, adding silicon oxide, silicon nitride, graphene, and absolute ethanol as the dispersion medium, and mixing to form a suspension.

[0018] S2, the suspension is poured into a ball mill jar, and after ball milling, it is continuously dried in a vacuum drying oven for 36-45 hours, and the temperature is kept at 120-140° C., and the dried mixed powder is sieved.

[0019] S3, pour the powder into the mold to be shaped, adopt the hot pressing sintering method, the sintering temperature is 1600-1700°C, the sintering pressure is 50-55MPa, and the heat preservation is 40-50min. After sintering, a blade matrix containing graphene is obtained, and the blade has a good lubricating effect and does not stick to materials, thereby reducing friction and wear on the surface of the tool.

[0020] S4, printing interconnected heating resistors and ele...

Embodiment 2

[0025] Part of the difference from Example 1 is: S6 adopts high-temperature co-firing method, in a high-temperature furnace, under the protection of nitrogen, it is sintered and formed in stages, including the first stage sintering, the temperature is raised to 960 ° C, and the temperature is kept for 2.1 hours; In the second stage of sintering, the temperature was raised to 1620°C and kept for 5 hours; in the third stage of sintering, the temperature was lowered to 1000°C and kept for 40 minutes; in the fourth stage of sintering, the temperature was lowered to 890°C and kept for 1.5 hours. The other features are the same and will not be repeated here.

Embodiment 3

[0027] Part of the difference from Example 1 is: S6 adopts high-temperature co-firing method, in a high-temperature furnace, under the protection of nitrogen, it is sintered and formed in stages, including the first stage sintering, the temperature is raised to 970 ° C, and the temperature is kept for 2.2 hours; In the second stage of sintering, the temperature was raised to 1640°C and kept for 5.5 hours; in the third stage of sintering, the temperature was lowered to 1000°C and kept for 45 minutes; in the fourth stage of sintering, the temperature was dropped to 900°C and kept for 2 hours. The other features are the same and will not be repeated here.

[0028] When applying the above present embodiment, the blade matrix includes graphene so that it has a better self-lubricating effect, and the edge finish is high, which is convenient for cutting; a heating controller is arranged on the top of the blade matrix, in order to achieve a good thermal fusion effect at the edge positi...

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Abstract

The invention discloses a manufacturing technique of a blade for a blood bag. The manufacturing technique includes the following steps that an aluminum oxide material serves as a base material, and silicon oxide, silicon nitride and graphene are added to be mixed to prepare suspension liquid; the suspension liquid is poured into a ball-milling tank, continuous drying is carried out in a vacuum drying oven after ball milling, and dried mixed powder is screened; the powder is poured into a mold needing to be molded, a hot pressed sintering manner is adopted, and a blade base is obtained after sintering; a heating resistor and an electrode pin which are connected are printed on the upper portion and the lower portion of the blade base through electric conduction raw materials to serve as controllers for heating the blade base; zirconium oxide, aluminum oxide and rare earth oxide containing titanium powder are mixed to prepare slurry, the slurry is coated to the upper portion of the blade base to cover the controllers, and a knife edge part at the lower portion of the original blade base is exposed; staged sintering molding is carried out; and the knife edge part is ground and polished. The blade has the good heat-conducting property, and heating is even and easy to control.

Description

technical field [0001] The invention belongs to the technical field of blade manufacturing, and in particular relates to a blade manufacturing process for blood bags. Background technique [0002] Blood bag products are widely used in the medical device industry. When sealing the outer edge of the blood bag, a high-frequency welding sealing mold is usually used. When the high-frequency welding sealing mold is sealed, the upper mold and the lower mold are pressed together at the opening of the blood bag. The heat generated by the upper mold and the lower mold by the high-frequency current melts and bonds the mouth of the blood bag together to complete the seal. At the same time, there is a cutter in the mold, which conducts the heat of the mold to the position where the cut is required to form a hanging hole. After the hanging hole is heated, it protrudes to form a molten reinforcing rib, which effectively prevents the hanging hole from tearing. The existing technology needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/06
CPCB22F7/06B22F2998/10B22F2999/00B22F1/0003B22F2009/043B22F2003/145B22F3/1007B22F2003/247B22F2201/02
Inventor 刁红文
Owner KUNSHAN YULI METAL PROD
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