Aluminum pipe internal coating continuity detection means
A detection device and inner coating technology, applied in the field of pharmaceutical packaging, can solve the problems of high detection times, high current stability requirements, complicated conditions, etc., and achieve the effects of convenient operation, simple structure and high detection accuracy
Inactive Publication Date: 2016-06-15
HUBEI HENGAN PHARMA
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Problems solved by technology
In the "Aluminum Medicinal Ointment Tube" standard, the detection device for this item is described. The device judges by adding test liquid into the aluminum tube and detecting the current value inside and outside the tube under the condition of external current loading. The integrity of the inner coating of the aluminum tube has a high number of inspections, high requirements on the stability of the current, and the conditions are relatively cumbersome
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[0011] Such as figure 1 As shown, the present invention includes a base 1 and a support frame 2 vertically connected thereto. The support frame 2 is rod-shaped, and a base electrode 3 is installed at its lower end, and an electrode bracket 4 and a sliding electrode 5 are installed at the upper end; The end is provided with an aluminum tube fixing hole 6, and the aluminum tube fixing hole is prismatic; the electrode bracket 4 is arranged horizontally, one end is connected to the support frame 2, and the other end is provided with an oval hole, and the sliding electrode passes through the oval hole and is positioned on the aluminum tube. The top of the tube fixing hole; the device also includes a multimeter 7, and the wires of the base electrode 3 and the sliding electrode 5 are respectively connected to the "COM" and "VΩ" jacks of the multimeter.
[0012] The distance between the base electrode 3 and the base 1 is more than 8 cm, so as to prevent the aluminum tube from touching...
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An aluminum pipe internal coating continuity detection means comprises a base and a support frame vertically connected with the base, and is characterized in that: the support frame is rod-shaped, a base electrode is mounted on the lower end of the support frame, an electrode holder and a slidable electrode are mounted on the upper end of the support frame, the end of the base electrode is provided with an aluminum pipe fixing hole, the aluminum pipe fixing hole is prismatic, the electrode holder is disposed horizontally, one end of the electrode holder is connected to the support frame, the other end of the electrode holder is provided with an oval hole, the slidable electrode passes through the oval hole, and is located above the pipe fixing hole, the aluminum pipe internal coating continuity detection means further comprises a multimeter, and wires of the base electrode and the slidable electrode are respectively connected with insertion hole ''COM'' and insertion hole ''V Omega'' of the multimeter. The original manner of detection of current change by use of an external power supply is changed, and aluminum pipe internal coating continuous integrity can be determined by detection of aluminum pipe internal and external resistance values. The aluminum pipe internal coating continuity detection means is simple in structure, easy in operation and high in detection accuracy.
Description
technical field [0001] The invention belongs to the field of pharmaceutical packaging, in particular to a device for detecting the continuity of the inner coating of an aluminum tube for packaging ointment. Background technique [0002] Aluminum medicinal ointment tubes (hereinafter referred to as aluminum tubes) are used for the inner packaging of ointment medicines. Due to the strong activity of metal aluminum, it can chemically react with many ingredients in medicines. Therefore, in order to avoid the impact of packaging materials on the quality of medicines , Aluminum tubes will be sprayed with a thin layer of coating on the inner wall of the tube before being used for pharmaceutical packaging, the main components are epoxy resin and phenolic resin. In order to ensure the insulation effect, the coating needs to be sprayed evenly without leakage. Inspection of the inner coating is required to determine its integrity. In the "Aluminum Medicinal Ointment Tube" standard, t...
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IPC IPC(8): G01N27/04
Inventor 李军
Owner HUBEI HENGAN PHARMA