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Screw thread sealing method

A thread sealing and threading technology, which is applied to engine sealing, engine components, mechanical equipment, etc., can solve problems such as water leakage or oil leakage, poor sealing effect, and large waste of sealant, so as to improve the quality of glue application and Production efficiency, failure rate reduction, and the effect of reducing the amount of glue used

Inactive Publication Date: 2006-07-26
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large randomness of the operation and the uneven application of the sealant, the disadvantages of this method are: 1. The sealing effect is poor, and water leakage or oil leakage is prone to occur; 2. The waste of sealant is large; 3. The efficiency is low

Method used

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  • Screw thread sealing method

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Embodiment Construction

[0011] With reference to the accompanying drawings, the thread sealing method described in the embodiment comprises the following steps in turn:

[0012] A. Cleaning: Degrease the threaded part of the bolt to make the surface of the threaded part clean;

[0013] B. Pre-coating: In the specially set up gluing station, use a gluing machine or a professional operator to pre-coat DriLoc204 dry film anaerobic adhesive on the threaded joints cleaned in step A. The pre-coating length is A =1.2d-1.5d, the pre-applied glue position makes B equal to 1-2 screw pitches, and the amount of glue applied is to fill the grooves between the thread teeth to make the surface even;

[0014] C. Drying: Dry the pre-coated bolts at a temperature of 75°C-85°C for 25-30 minutes, and the thickness of the adhesive film after drying is 1 / 3-2 / 3 of the thread thread height ;

[0015] D. Installing: install the dried pre-glued bolts on the station.

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Abstract

The invention relates to a method for sealing the screw, which uses plating device or special plating worker to plate the screw sealing rubber at the connection part of screw couple, while the grooves between the teeth of screw are fully filled to smooth the surface and to be dried. It can make the plated film uniform, reduce the used amount, avoid longitudinal and transverse breakage and improve the plating quality and producing efficiency.

Description

technical field [0001] The invention relates to a thread sealing method. Background technique [0002] Thread sealing is a well-known technology in the machinery industry. For example, in diesel engines, there are many threaded parts that communicate with water chambers or oil chambers and fastening parts that require special locking. They are all sealed and locked by applying sealant. The method is manually Apply sealant to the threaded locking part of the bolt first, and then tighten it immediately. Due to the randomness of the operation, this method has the disadvantages of uneven coating of the sealant: 1. poor sealing effect, prone to water or oil leakage; 2. large waste of sealant; 3. low efficiency. Contents of the invention [0003] The object of the present invention is to provide a thread sealing method with good sealing effect and high efficiency. [0004] In order to achieve the above object, the provided thread sealing method includes the following steps in ...

Claims

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Application Information

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IPC IPC(8): F16J15/00
Inventor 赵德英王庆贵
Owner WEICHAI POWER CO LTD
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