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Threaded sealing grease with characteristics of rust resistance, wipe resistance and environmental protection, and preparation process thereof

A thread sealing and preparation process technology, applied in the field of thread grease, can solve problems such as environmental and human hazards, corrosion resistance and friction resistance, and reduce health damage, improve abrasion resistance and corrosion resistance, and reduce environmental protection. effect of risk

Inactive Publication Date: 2015-08-26
TIANJIN DATONG GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The currently widely used API thread grease and API improved thread grease cannot compare with foreign high-end products in terms of corrosion resistance and friction resistance, and they need to add heavy metals such as lead powder and zinc powder, which are harmful to the environment and human body.

Method used

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  • Threaded sealing grease with characteristics of rust resistance, wipe resistance and environmental protection, and preparation process thereof
  • Threaded sealing grease with characteristics of rust resistance, wipe resistance and environmental protection, and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add base grease accounting for 20% of the weight of the sealing grease composition, 10% of expanded graphite powder, stir in the mixer for 20 minutes, colloidally grind and filter; pump the sealing material into the mixer, and add 22.5% of the weight of the sealing grease composition. Graphite powder, 7.5% light calcium carbonate anti-wear material and 20% base grease, finally add 20% copper powder, stir for 60 minutes, grind, pump, filter, inspect, and pack to get the product.

Embodiment 2

[0023] Add base grease accounting for 25% of the weight of the sealing grease composition, 20% expanded graphite powder, stir in the mixer for 30 minutes, colloidally grind and filter; pump into the mixer, add 15% of the weight of the sealing grease composition flake graphite powder, 5% light calcium carbonate anti-wear material and 25% base grease, finally add 10% copper powder, stir for 40 minutes, grind, pump, filter, inspect, and pack to get the product.

Embodiment 3

[0025] Add base grease accounting for 22.5% of the weight of the sealing grease composition, 15% expanded graphite powder, stir in the mixer for 25 minutes, colloidally grind and filter; pump into the mixer, add 19% of the weight of the sealing grease composition flake graphite powder, 6% light calcium carbonate anti-wear material and 22.5% base grease, finally add 15% copper powder, stir for 50 minutes, grind, pump, filter, inspect, and pack to get the product.

[0026] After testing, the product has been inspected by the National Petroleum Pipe Quality Supervision and Inspection Center. All indicators meet the requirements of API RP5A3 standards and the quality is stable. All indicators have reached the leading level of similar products at home and abroad. The test results of batches of products are shown in the table below:

[0027]

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Abstract

The present invention relates to a threaded sealing grease with characteristics of rust resistance, wipe resistance and environmental protection, wherein the components comprise, by weight, 37-46.25% of synthetic oil type base grease, 3-3.75% of an anti-rust agent, 10-20% of copper powder, 10-20% of expanded graphite powder, 5-7.5% of calcium carbonate, and 15-22.5% of flake graphite powder. The present invention further relates to a preparation process of the threaded sealing grease with characteristics of rust resistance, wipe resistance and environmental protection, wherein the specific steps comprise base grease preparing, sealing material pretreatment, and sealing grease finished product preparing. According to the present invention, the component ratio of the threaded sealing grease is different from the component ratio of the traditional sealing grease, the lightweight calcium carbonate material and the graphite powder are added so as to provide good wipe resistance and good corrosion resistance, and only the copper powder is added while other heavy metals are removed under the premise of assurance of the threaded grease performance so as to reduce the risk of heavy metals on the environment, reduce the damage on the user health, and provide environmental protection.

Description

technical field [0001] The invention belongs to the field of thread grease, and relates to a rust-resistant, abrasion-resistant and environment-friendly thread sealant and a preparation process thereof. Background technique [0002] Petroleum sealing grease is an important material used for lubricating and sealing special pipe strings in the process of oil exploitation. Due to the harsh environment (such as extremely cold, extremely hot, wet or dry, dirty, and highly corrosive environments), it will cause buckling, Problems such as shackle sticking oil circuit, difficulty in manual coating, thread corrosion, environmental pollution, etc. The research and development technology of foreign thread sealants is superior to domestic ones, and has uniform standards in terms of sealing performance, friction and tightening degree. Foreign thread sealants occupy most of the market share in our country. [0003] The currently widely used API thread grease and API-improved thread greas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/12C10N30/04C10N50/10
Inventor 邱阳
Owner TIANJIN DATONG GREASE
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