SilcoTekPassivation of stainless steel pipes and gas path components for analytical instruments has been widely recognized by users. To betterplay, give play to, bring into playSilcoTek®The excellent performance of passivation products is highly recommended, with key issues to be aware of during use for your reference.

?How to CutSilcoTekstainless steel pipe

?How to bend and installCVDCoated stainless steel pipe

?How to prevent particle contamination in stainless steel pipelines

?How to clean stainless steel pipes

cuttingSilcoTek®Passivation tube

Can be cut like any stainless steel pipeSilcoTek®Inert coated pipe. Cut stainless steel with a pipe cutter or power cutting wheelManage. Do not use a steel saw, as it is prone to jumping on the surface of the pipe(Damaged pipes)And it is easy to leave uneven rough cutsTrace, affecting the pipe fittings and causing leakage.Choose a cutter with a suitable size for stainless steel pipes. Of course, cutters for cutting copper, aluminum, or brass pipes cannot be used. forTo achieve the longest service life and best cutting quality, quenched hard tool steel materials and thinner shapes should be selectedThe cutting wheel can achieve clean cutting with fewer burrs.

cuttingSilcoTek®Passivation tube steps

•Insert the pipe into the pipe cutter.(Rotate the cutting wheel adjuster to open the tool)

•Align the cutting wheel with the cutting position, rotate the cutting wheel depth adjuster, and apply a small amount of pressure on the surface of the pipe.

•Rotate the cutting blade to make the cutting wheel roll around the pipe. Roll the tool a few times on the stainless steel tube, then slightly tighten the cutting wheel to adjustTool, increase cutting depth. This will push the cutting wheel into the cutting tube a little more. Continue rolling and adjusting the cutting wheel, when the cutting wheel passes throughWhen passing through the pipe wall, the pipe will break.hold downCntrolAnd click the operation display to see the cutting process from the Internet.For analysts, necessary measures should be taken to prevent metal particles from entering the pipeline. After cutting the pipe, be sure toThe cut end is tilted downwards to prevent the pipe from being trimmed and falling into the interior of the pipeline. Gently tap the pipe end to discharge the pipe debris and blow out the small and fine pipe chips inside the pipeTo prevent particles from contaminating the pipeline or clogging the filter, it is necessary to prevent particles from adsorbing on the analyte and affecting the testing accuracy.bendSilcoTek®Passivation tube steps:After the stainless steel pipe is cut, it can be bent. It should be noted that pipeline bending is limited by the minimum bending radius.Be careful not to twist the pipe or stretch the outer pipe wall when bending it. This will result in the formation of voids on the passivated surface.

The recommended bending radius is as follows:

installSilcoTek®Precautions for Passivation AccessoriesinstallSilcoTek®Passivation accessories need to be assembled according to the manufacturer's recommended assembly procedure. withSwagelok®productExample. When applied to analytical instruments, soap water should not be usedsnoopOr other liquid leak detection sprays. Suggest adopting our company's technologyRecommended electronic leak detector for leak detection. The connectors should also be connectedSilcoTek®Passivation treatment to ensure that the entire flow path and connecting components areAfter inert treatment. Card sleeves do not require passivation treatment, as appropriately sized card sleeves have a very small exposed area in the flow path.

washSilcoTek®Passivation tubeAvoid using steam cleaningSilcoTek®Manage. Steam is usually not clean enough, especially in the refining and chemical industries,It will contaminate the flow path for analysis sampling. It is recommended to use nitrogen blowing or high-purity solvent cleaning to avoid gas path pollution.maintenanceSilcoTekPassivation tube to maintain its optimal working conditionThe maintenance of the inner wall of the pipeline determines whether the entire analysis system can continuously provide high purity, corrosion resistance, and high inertnessNeed factors. Neglecting coating care will affect the analysis work.

Please follow the following suggestions:

1. Maintain surface cleanlinessMaintain surface cleanliness to prevent cross contamination and accumulation of reaction product particles. Best to use“Minimally invasive methods”Come and clean the surface. GaoyanGrinding or alkaline cleaning agents(pHValue higher than8)It will damage the surface. Use non-polar solvents (such as high-purity hexane) for cleaning to preventStop hydrocarbon pollution. Using polar solvents can remove more active compounds. Require the use of the highest purity solvent. lowerGrade solvents will leave a thin film on the surface.Remember, once the surface is cleaned, residual solvents may remain on the surface. If the solvent does not meet the requirements, it will be listed on the coating surfaceLeave trace amounts of adsorbed or reactive substances on the surface. Therefore, before using high-purity or analytical solvents, it is necessary to confirm the cleaning solventThe quality.

2. Steam cannot be usedRefineries often use steam to clean or purify the injection flow path. However, steam can make the silicon surface more active. Steam flow will cause slightThe particles are transported at high speed, which damages the coating. You can consider using ultrasound or solvent to rinse the system in a short period of time.(note:Ultrasonic waves can also cause damageDamage coating surface;The parts can only be placed in the ultrasonic cleaning machine for a few minutes.)

3. The acidity and alkalinity should not be too highexposed topHValue greater than8 The base under it will corrode the silicon surface. One method to determine if a surface has been eroded is to inspect the appearance of the componentColor. If a change in the color of the rainbow coating is detected, it can serve as a distinguishing indicator, indicating that the coating has become thinner and is being damaged.

4. Install filters in the flow pathParticles can damage the surface of silicon, especially during high-speed flow. Particles may react with process fluids or adsorb sample compounds,Polluted sample flow path. Installing a molten metal porous filter in the sample flow path can prevent system particle contamination and avoid contaminationSilcoTek®Potential damage to the coating surface. Should adopt the method of going throughSilcoTek®Processed metal filters. Preventing particlesAt the same time as material pollution, it also maintains system inertia.SilcoTek®Can the parts work normally in the highest inert state after years of use. This depends on maintenance and usageThe severity of the environment. If working in harsh environments or critical workstations, it is best to focus on the keySilcoTek®Prepare components for backupInventory of goods.