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1. The stainless steel putty knife is made of stainless steel. The stainless steel putty knife made of stainless steel has a beautiful surface, good corrosion resistance, longer service life than ordinary steel, and high strength. Therefore, the possibility of using thin plates is high temperature oxidation resistance and high strength. Therefore, it is fireproof. It is processed at room temperature and is very easy to plastic process, so no surface treatment is required.

Stainless steel putty knife

2. Good elasticity. The stainless steel putty knife has excellent rebound performance, does not deform after long-term use, and is tough.

3. The third stainless steel putty knife handle and stainless steel putty knife body are injection molded, and will not loosen after long-term use. At the same time, the stainless steel putty knives produced by our company have high surface polishing precision and bright gloss.

When designing the stainless steel putty knife plastic handle mold, the shrinkage rate of each part of the plastic part should be determined based on the shrinkage range of the plastic, the wall thickness and shape of the plastic part, the shape, size and distribution of the feed port, and then the cavity size is calculated. For high-precision plastic parts, when the shrinkage rate is difficult to grasp, the following methods should be used to design the mold:

1. For the outer diameter of the plastic part, take a smaller shrinkage rate and the inner diameter take a larger shrinkage rate, so that there is room for correction after the mold trial.

2. Test the mold to determine the shape, size and molding conditions of the pouring system.

3. The dimensional change of the plastic part to be post-processed should be determined after post-processing.

4. Correct the mold according to the actual shrinkage rate.

5. Try the mold again, change the process conditions appropriately, and slightly correct the shrinkage value to meet the requirements of the plastic part.

In corrugated cardboard printing, the correct installation of the scraper is very important for optimizing printing performance and controlling costs. The scraper must be carefully installed in place to ensure successful ink transfer and effective printing.

If the scraper is installed correctly, the service life of the scraper and the anilox roller will be extended at the same time, and consistent printing effects can be maintained. Improper installation of the scraper will accelerate the wear of the scraper and the anilox roller at the same time, and ink leakage in the scraper cavity will increase the downtime of the printing press and waste production time. The following will introduce the factors that affect the correct installation of the scraper, such as the installation position and direction of the scraper, the scraper contact angle, horizontal adjustment and pressure.

1. Installation position and direction of the scraper

When installing the scraper, first accurately position the scraper and the sealing knife to obtain the best printing effect. The scraper is the last contact blade for ink delivery to the screen roller, and the sealing knife is always installed opposite it.

If the scraper is installed in the wrong position with the sealing knife, the scraper will not have the correct contact point and will not scrape off the right amount of ink before the ink is transferred. The tip of the scraper slope should face the scraper chamber to prevent streaks.

2. Scraper contact angle

The blade contact angle is the contact angle between the blade and the anilox roller. The ideal contact angle between the blade and the circumference of the anilox roller should be 30. If the angle is less than 30, most of the edge of the blade will contact the anilox roller. If the contact surface is too large, it is difficult to scrape properly; in the same case, if the contact surface is greater than 30 degrees, the blade should not scrape ink.