CN103668157A

CN103668157A - Low-cost environmental-friendly silane vitrification treatment agent for steel and iron workpieces

Info

Publication number: CN103668157A
Application number: CN201310677766.9A
Authority: CN
Inventors: 潘德顺; 朱国玉; 黄文飞; 王剑; 李文瀚; 郝荣
Original assignee: Dalian Sandaaoke Chemistry Co Ltd
Current assignee: Dalian Sandaaoke Chemistry Co Ltd
Priority date: 2013-12-13
Filing date: 2013-12-13
Publication date: 2014-03-26

Abstract

The invention discloses a low-cost environmental-friendly silane vitrification treatment agent for steel and iron workpieces. The treatment agent is characterized by being prepared from the following raw materials in percentage by mass: 2-6% of 40% (mass concentration) fluotitanic acid, 1-2% of ammonium fluozirconate, 0.1-0.5% of 50% (mass concentration) borofluoric acid, 0.1-1% of 60% (mass concentration) nitric acid, 0.1-1% of citric acid, 0.1-1% of sodium molybdate, 0.1-0.5% of phytic acid and the balance of water. According to the treatment agent, the operation can be carried out at normal temperature without heating, so that the consumption of energy sources is reduced; the performance of treated films for the steel and iron workpieces is equivalent to that of imported products, but the cost is reduced greatly.

Description

Iron and steel parts low-cost environment-friendly silane vitrification treatment agent

Technical field

The present invention relates to a kind of metal vitrification epithelium treatment agent, especially a kind of cost is low, the iron and steel parts low-cost environment-friendly silane vitrification treatment agent of excellent performance.

Background technology

Metal component surface is because of grease, floating rust, heavily rust, oxide skin and welding high-temperature oxide etc., therefore in the past before the art breading such as spray-coating, all that above-mentioned oily scale etc. is disposed and mostly by phosphate conversion, processed, make its Surface Creation one deck there is black, silver gray or the color phosphor hydrochlorate conversion film (epithelium) of certain roughness, porousness, adsorptivity, to strengthen workpiece surface rotproofness, to improve workpiece surface and the sticking power that is coated with interlayer or other organic surface treatment interlayers.But, in existing phosphating agent, containing heavy metal and phosphoric acid salt etc., wastewater treatment complexity and cost are large, are unfavorable for environment protection.At present; the existing vitrification epithelium treatment agent that substitutes phosphating agent; be mainly to replace traditional crystal type phosphatization protective layer with the nano ceramic coat that zirconium white forms, because of not containing heavy metal and phosphoric acid salt, wastewater treatment simply and be beneficial to environment protection and be subject to user's welcome.But existing iron and steel parts vitrification epithelium treatment agent is all by German Henkel, Kai meter Te Er and the import of Japanese Paccar mostly, exists expensive problem.

Summary of the invention

The present invention is in order to solve the existing above-mentioned technical problem of prior art, provides that a kind of cost is low, the iron and steel parts low-cost environment-friendly silane vitrification treatment agent of excellent performance.

Technical solution of the present invention is: a kind of iron and steel parts low-cost environment-friendly silane vitrification treatment agent, is characterized in that raw materials used and mass percent is as follows: the fluoroboric acid 0.1 ~ 0.5% of the hydrofluotitanic acid 2 ~ 6% of mass concentration 40%, ammonium fluozirconate 1 ~ 2%, mass concentration 50%, the nitric acid 0.1 ~ 1% of mass concentration 60%, citric acid 0.1 ~ 1%, Sodium orthomolybdate 0.1 ~ 1%, phytic acid 0.1 ~ 0.5% and water surplus.

The present invention can carry out at normal temperatures, does not need to heat, and reduces energy consumption; Iron and steel parts is processed to film properties suitable with imported product, but price significantly reduces.

Embodiment

Embodiment 1:

Raw materials used and mass percent is as follows: raw materials used and mass percent is as follows: the fluoroboric acid 0.5% of the hydrofluotitanic acid 6% of mass concentration 40%, ammonium fluozirconate 1%, mass concentration 50%, the nitric acid 0.1% of mass concentration 60%, citric acid 1%, Sodium orthomolybdate 0.1%, phytic acid 0.5% and water surplus.

Preparation method is: first calculate weighing water and join in reactor and turn on agitator, set 60 revs/min of rotating speeds; Hydrofluotitanic acid, ammonium fluozirconate, the fluoroboric acid of mass concentration 50%, nitric acid, citric acid, Sodium orthomolybdate and the phytic acid of mass concentration 60% of the mass concentration 40% weighing will be calculated again, join inchmeal in reactor successively, continuously stirring 1.5 ~ 2 hours, is stirred to solution and is lilac transparence;

Embodiment 2:

Raw materials used and mass percent is as follows: the fluoroboric acid 0.1% of the hydrofluotitanic acid 2% of mass concentration 40%, ammonium fluozirconate 2%, mass concentration 50%, the nitric acid 1% of mass concentration 60%, citric acid 0.1%, Sodium orthomolybdate 1%, phytic acid 0.1% and water surplus.

Preparation method is with embodiment 1..

Embodiment 3:

Raw materials used and mass percent is as follows: the fluoroboric acid 0.3% of the hydrofluotitanic acid 5% of mass concentration 40%, ammonium fluozirconate 1.5%, mass concentration 50%, the nitric acid 0.5% of mass concentration 60%, citric acid 0.5%, Sodium orthomolybdate 0.5%, phytic acid 0.3% and water surplus.

Preparation method is with embodiment 1..

During use, the embodiment of the present invention 1,2 or 3 is added to water 3 ~ 5% preparation working fluids by mass percentage, with bicarbonate of ammonia, regulating pH value is 4.0 ~ 4.6, normal temperature Temperature Treatment iron and steel parts spray 2 ~ 3min, dipping 5 ~ 8min.The property indices that gained is processed film meets vitrification epithelium specification of quality, and performance index are suitable with imported product.

Claims

1. an iron and steel parts low-cost environment-friendly silane vitrification treatment agent, is characterized in that raw materials used and mass percent is as follows: the fluoroboric acid 0.1 ~ 0.5% of the hydrofluotitanic acid 2 ~ 6% of mass concentration 40%, ammonium fluozirconate 1 ~ 2%, mass concentration 50%, the nitric acid 0.1 ~ 1% of mass concentration 60%, citric acid 0.1 ~ 1%, Sodium orthomolybdate 0.1 ~ 1%, phytic acid 0.1 ~ 0.5% and water surplus.