In the metal processing industry, anti-rust oil has always been an indispensable partner. When many engineers choose anti-rust oil, they often only focus on the length of the anti-rust period and the number of hours of salt spray test, but ignore the profound impact of anti-rust oil on the subsequent processing. In fact, anti-rust oil not only bears the heavy responsibility of protecting the metal surface from corrosion, but also directly determines whether the next process is smooth and efficient, or there are many problems. Today, the Hank BS-400 series anti-rust oil we want to introduce is precisely a revolutionary product that "not only prevents rust, but also understands the subsequent processing".
The plight of traditional anti-rust oils is believed to be well understood by many first-line production managers. In order to obtain strong anti-rust capabilities, some anti-rust oils use formulas with high viscosity and high oil film thickness. Although they can resist moisture and salt in the short term, the problem will explode in the post-processing stage. For example, in the welding process, when the oil film is too thick or contains special additives, a lot of smoke will be generated during welding, and the weld is prone to pores and slag inclusions, which seriously affects the welding strength. In the coating process, if the anti-rust oil is incompatible with the paint, it will lead to poor adhesion of the paint film, shrinkage holes, fish eyes and other defects, and eventually can only be reworked. In the assembly and testing process, the residual oil film may adhere to dust or interfere with torque calibration, and even affect the electrical performance of the product. These hidden costs are often several times higher than the procurement cost of the anti-rust oil itself.
The Hanke BS-400 series was born to solve these pain points. At the beginning of its development, its R & D team deeply investigated the real needs of customers in the automotive parts, construction machinery, precision hardware, hydraulic components and other industries. They found that modern factories pursue a kind of "synergy" - anti-rust oils not only protect metals, but also integrate smoothly into the entire production process, and even actively create convenience for the next process. Based on this concept, the Hanke BS-400 series uses a unique low-residue, high-cleanliness formula base oil, combined with a precision-screened composite anti-rust additive system, to achieve the perfect balance of anti-rust performance and post-processing friendliness.
In terms of anti-rust performance, the Hank BS-400 series is uncompromising. It uses a polar adsorption type anti-rust agent, which can form a dense and orderly molecular film on the metal surface, effectively isolating moisture, oxygen and corrosive ions. After authoritative testing, this series of products can provide up to 6-12 months of anti-rust protection cycle in indoor environments, and also performs well in outdoor short-term protection. Whether it is carbon steel, cast iron, or non-ferrous metals such as galvanized sheet, aluminum alloy, copper alloy, etc., the Hank BS-400 series can provide reliable protection. For different surface conditions of stamped parts, machined parts, and turned parts, the series is also divided into several models. For example, BS-401 is suitable for long-term rust prevention of precision stainless steel parts, BS-402 is suitable for rust prevention of cast iron parts and temporary storage between processes. BS-403 is especially suitable for workpieces that need to be touched frequently. The oil film is not sticky and does not affect subsequent assembly. This flexible product matrix allows every user to find the most suitable solution for their working conditions.
But the real value of the Hanke BS-400 series lies in its "deep understanding" of post-processing. We may wish to analyze in detail from a few key processes.
The first is the welding process. For metal parts that need to be welded, traditional anti-rust oils are often the invisible killers of welding quality. The Hank BS-400 series effectively reduces the amount of oil fume generated during welding by using high flash point, low volatile base oils and special additives. At high temperatures, the oil film can quickly evaporate and decompose, leaving no coke or high melting point ash, thus minimizing pores and inclusions in the weld. Especially in gas shielded welding and laser welding, the workpiece treated by the Hank BS-400 series has a beautiful weld shape, stable melting depth, and significantly reduced welding spatter, which not only improves the welding pass rate, but also reduces the burden of subsequent grinding processes.
The second is the coating and surface treatment process. In modern manufacturing, many workpieces do not have special cleaning equipment between rust prevention and painting, or for environmental protection and cost considerations, they want to be directly coated with oil. The Hank BS-400 series has excellent compatibility, and its oil film can be well compatible with cathodic electrophoretic paints, powder coatings, water-based paints and most solvent-based paints. In actual tests, the steel plates treated with the Hank BS-400 series rust prevention treatment have reached grade 0 adhesion after electrophoretic coating, and the impact strength, cupping test and other indicators meet or exceed the industry standard. This means that the use of the Hank BS-400 series can save the oil removal and cleaning process before painting, greatly reduce wastewater discharge and energy consumption, and truly realize green manufacturing.
The third is assembly and torque control. For precision bolts, bearings, hydraulic joints and other products, the residual anti-rust oil in the friction part will affect the torque coefficient and lead to unqualified assembly. The Hank BS-400 series adopts a low friction coefficient design, the oil film is extremely thin and uniform, and its lubrication performance has been specially adjusted to ensure that a certain amount of lubrication is provided in the initial stage of assembly, and the torque-preload relationship is stable, and the assembly quality will not be scattered due to fluctuations in the thickness of the oil film. More importantly, the Hank BS-400 series does not contain silicone defoamers and some easily migrated plasticizers, which will not contaminate the touchpoints or optical components of electrical appliances, ensuring that precision parts that are sensitive to electronics can also be used safely.
In addition to the performance in the post-processing, the Hank BS-400 series also pays great attention to the user's operation experience and on-site safety. Its base oil has been deeply refined and has a mild smell, which is much lower than the pungent solvent smell of traditional solvent-diluted anti-rust oils. The product does not contain harmful substances such as barium and chlorine, and meets the requirements of RoHS and REACH regulations. Long-term exposure by operators will not cause skin irritation. The flash point is high, which reduces the risk of fire during transportation, storage and use. In terms of packaging design, the Hank BS-400 series provides 20L, 200L standard packaging, and also supports 1L small packaging and customized capacity, which is convenient for enterprises of different sizes to use. For the automatic spraying line, this series also has good atomization performance, the spray gun is not easy to block, and the volatilization speed is moderate, which can achieve fast surface drying without causing the local temperature of the workpiece surface to be too low due to excessive volatilization.
The application case can also further illustrate the problem. In a large commercial vehicle axle factory, a low-cost anti-rust oil was originally used, and the anti-rust effect was acceptable. However, when welding the axle assembly, the porosity rate of the weld was as high as 8%, resulting in monthly batch repairs. Engineers tried cleaning, but increased the process and cost. Later, the Hank BS-400 series was switched to, without changing any welding parameters, the porosity rate dropped to less than 1%, and the welding pass rate increased to 99.5%. At the same time, due to the elimination of the cleaning process before painting, the workshop saved more than 300,000 yuan in cleaning agent costs and wastewater treatment costs every year. Another company that produces precision hydraulic valve bodies needs to store work in progress for a long time and then conduct assembly tests. The previously used anti-rust oil left sludge inside the valve body, causing the proportional valve to get stuck. After replacing the Hank BS-400 series, after 3,000 hours of damp and heat testing, the valve body did not rust, and the cleanliness of the internal parts reached NAS level 5. After assembly, the proportion of passing the performance test at one time increased from 91% to 99%. These all truly explain what is called "understanding post-processing".
Of course, the high cost-effectiveness of the Hank BS-400 series cannot be ignored. Although its unit price is slightly higher than that of ordinary anti-rust oils, the comprehensive cost is actually lower. Because of the reduction of cleaning links, labor, power consumption, cleaning agents and equipment maintenance costs are saved; because of the improvement of welding and coating pass rates, the scrap rate and rework costs are reduced; because of the longer anti-rust cycle, the repeated labor of multiple oiling is reduced; because of the excellent stability, the oil replacement cycle is extended. Adding up these hidden benefits, the Hank BS-400 series actually brings users quantifiable cost reduction and efficiency gains. The company not only harvests products with more stable quality, but also gains double improvement in production efficiency and market competitiveness.
In terms of model selection, the Hank BS-400 series is recommended to consider comprehensively according to the material of the workpiece, the requirements of the rust prevention period, the follow-up process and the packaging and transportation method. If the workpiece needs to be assembled directly after rust prevention, the BS-403 with thinner oil film and better self-cleaning can be selected; if the workpiece is transported outdoors or in a high humidity environment for a long time, the BS-402 model with stronger salt water resistance is recommended. Hank's technical team also provides free samples and on-site technical services to help customers verify the effect of the product through small batch tests, and then gradually switch to ensure foolproof.
It is worth mentioning that the innovation of the Hank BS-400 series has not stopped. With the rapid development of new energy vehicles, hydrogen energy and semiconductor industries, higher requirements are placed on the cleanliness and corrosion resistance of metal parts. The Hank R & D Center is developing low-precipitation anti-rust oil and biodegradable environmentally friendly anti-rust oil for high-clean environments based on the mature platform of the BS-400 series. In the future, the BS-400 series will be more subdivided and functionalized, not only serving traditional machining, but also empowering high-end manufacturing and green manufacturing.
In short, the value of the Hank BS-400 series anti-rust oil far exceeds the word "anti-rust" itself. It is a kind of thinking change in the production process, reminding every manufacturer that the choice of anti-rust oil depends on its impact on the entire production system. A good anti-rust oil should be like a tacit teammate, not only firmly guarding the anti-rust checkpoint, but also actively paving the way for subsequent processes. The Hank BS-400 series is such a professional partner who truly "understands post-processing". If your factory is struggling with welding pores, painting shrinkage holes, unstable assembly torque or high cleaning costs, give the Hank BS-400 series a chance. It will prove with real results what it means to "not only prevent rust, but also understand post-processing". In the future market competition, those companies that take the lead in choosing the Hank BS-400 series are likely to be at the forefront of the industry because of lower comprehensive costs and higher product reliability. Please believe that professional strength and professional products can always solve the most complex problems with minimal intervention. Choosing the Hank BS-400 series is to choose a shortcut to efficient, precise and sustainable manufacturing.
