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Everwide Newsletter No.186

Experiment § Hole repair in wood

Wood inevitably has holes and cracks that need to be repaired (Figure 1), but the most commonly used repair material is instant glue. The method of repairing is to first spot the instant glue on the cracks, then fill in the wood powder, and then add a layer of instant glue after a little grinding (Figure 2). because the instant glue emits a large amount of heat when it is cured, it will cause pores in the repaired cracks, so it often takes time to repair it again, but it will cause production problems. For the process of repairing wood cracks, we develop special resins, which we call wood patching. The wood filling is made of two-component epoxy resin: it will gel in 5 minutes, so it will not overflow randomly. It can be ground in 30 minutes and has good processing characteristics, because it is dyed in resin, it is not necessary to add wood flour. All in all, this product requires fast curing, saving process, preventing the generation of pores, and reducing the labor hours of heavy work. In addition to the above advantages, our soil replenishment complies with environmental protection regulations and does not harm humans and the environment. Maybe someday there will be our wood filler (Figure 3) on the wooden floor of your home.

─Author: Miss. Zi-Hui, Huang


Activity § ISO/TS16949 external audit

After nearly a year of hard work, at the end of September last year, we finally started the external audit of ISO/TS16949. Since I have never contacted the ISO/TS16949 external audit, my colleagues are very careful before the external audit and are afraid that if they make a mistake, they will fall short. The three-day audit includes a one-day process audit, and each colleague takes out his own profession to let the audit teacher understand our company's documents, manufacturing processes, and systems. Of course, we also have many shortcomings that need to be improved. The audit teacher also instructed us on how to do better. After the audit, we immediately launched a review meeting to discuss the countermeasures for improvement. We are convinced that in the days to come, we can improve and complete these areas one by one, and gradually make up for what we lack. The once-a-year external audit is shocking education for many people, but it is for us to examine our own shortcomings. I hope that we can achieve perfection in the future!


Knowledge § Will different curing conditions get the same curing properties (2)?

Continuing the topic of last week: different processing conditions and the same Tg can ensure the same chemical properties of the resin. However, this result does not mean that the customer's product characteristics will be the same. For example Adhesive applications, different processing conditions will affect the wetting ability of the material, and then affect the adhesion strength. In the case of infusion, different processing conditions will be limited by the heat transfer capacity of the equipment, and there will also be issues such as whether the reaction heat is too concentrated, whether it can defoam, whether the surface is flat, and whether stress occurs. These issues have nothing to do with chemical properties and need to be considered in terms of application. Material suppliers and customers discuss feasible processing conditions together, and only when the material characteristics are the same, can the customer's product characteristics have the best performance.


Living § Queen’s cafe in Hong Kong

My colleague knew that I was going to a meeting with Manager Huang in Hong Kong, and asked me to help him buy some delicious, nougat made by Queen’s cafe. Since our stay is in a busy area, I found out from the Google map that the nearest store is only 700 meters away, and the further store is 1500 meters away, so we plan to walk to the nearest store. However, the Street View service of Google Maps does not see Queen’s cafe at all (Figure 1). Where is the second store? Because it is on the 18th floor, I can only see it downstairs. So, I took Hong Kong dollars, and a heart that "may not be found", and flew to Hong Kong. We had a meeting all morning, and the client enthusiastically asked us to have dinner, so I had to buy good things and return to the restaurant before dinner. We set off at four in the afternoon and arrived at the first address: Mallory Street very smoothly. The street was only 70 meters long, and I looked for it one by one, but I couldn't find Queen’s cafe! Manager Huang also asked the people in the store, and the answer was "not here." So we hurried to the second address, after a while of trying to get lost, we finally found Queen’s cafe on the 18th floor but their Chinese name is a bit strange, called "Queens Hotel". I bought Nougat (Figure 2), and curiously took their business card, and then found that the shop on the back really has this shop on Maoluo Street! On the way back, we went back there without giving up, because we wanted to see what was going on. Oh my god! Their signboard did not say Queen’s cafe, only "Queen’s Hotel" (Figure 3). The first time I saw it, I thought it was a place to eat, so I didn’t expect to go in to buy sugar! In any case, the journey covered a total of 3,300 meters. In addition to the joy of accomplishing the task, gout in my left foot that had troubled me for several weeks was almost cured. Who is going to Hong Kong next time, remember to buy delicious nougat!

─Author: Dr. Ye-Xu, Li


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