本教程适用版本：WPS 365 点击免费使用

解决方法：

有两种方法可以冻结单元格，分别如下：

（1） 方法一：

选中要冻结的单元格后，选择「视图」-「冻结窗格」，即可冻结目标单元格。

》免费升级到 WPS 企业版：多人协作在线文档，大容量企业云盘

（2） 方法二：

选中要冻结的单元格，在界面上方导航栏选择「窗口」-「冻结窗格」，即可冻结目标单元格。

》免费升级到 WPS 企业版：多人协作在线文档，大容量企业云盘

冻结单元格的小技巧你学会了吗？

Posted on Jan. 28th, 2019 | By Candy, WayKen Marketing Manager

Today we are going to look at the manufacturing processes of the acrylic polymer or optical prototyping. It is one of the most widespread plastics all over the world and a prominent competitor to glass and polycarbonate. Due to the fact that acrylic parts are used in a lot of industry areas, it seems a good idea to look into its manufacturing processes, specifically CNC acrylic machining since that is the process that is present in almost any kind of acrylic production. This article will tell you how to choose the right blank, cut and engrave it using CNC routers and what to do after you are finished with cutting operations.

The Advantages of Acrylic and Why Machining is Best for It

Acrylic is such a widespread material because of its outstanding properties. First, and most important, it is 5 times stronger than glass. And by stronger, I mean shock-resistant and shatterproof. It is also very transparent. Acrylic has 92% transparency, meaning only 8% of the incoming light is lost when passing through it. To compare, window glass is 83-90% transparent, polycarbonate has 90% transparency. Sure, the difference is small but it is there. Apart from transparency and unlike other plastics, acrylic does not deteriorate after being under UV light for long periods of time. PC, for example, becomes yellow, other plastics become brittle. The same things can be said about corrosion and water resistance.

What do those properties tell us? That acrylic parts are very durable, resistant, and transparent. That makes them perfect for a lot of applications. Car lights, shop and advertisement banners and emblems, light tubes, and others. All of the mentioned applications require the utmost precision and great surface finish. And adding to the fact that Acrylic is quite strong and rigid,  acrylic CNC machining is a perfect solution.

What Kind of Acrylic is Better for CNC Machining

Typically, acrylic blanks are manufactured using two methods: extrusion and casting. The first method is used to manufacture sheets, while the other is used to manufacture sheets and any other kind of form. Acrylic thickness from using both methods usually varies from 1,5 to 25 mm. Such a variety of thicknesses makes acrylic a good choice for cutting out flat emblems and signs. Let’s see which kind of blanks has better properties for CNC acrylic cutting.

Extrusion consists of melting large volumes of acrylic pellets in a special tank and extruding the resulting liquid through a specifically formed whole – an extrusion nozzle. Casting acrylic is similar to casting any other material. The pellets are melted and poured into a casting form, which is later cooled down and extracted. Extruded and Cast blanks behave differently under a cutting tool. Extruded acrylic has more leftover tensions so it is more susceptible to cracks and overall more brittle. That’s why machining it is a disaster. In addition, extruding makes its properties anisotropic, so you are basically machining different materials along the X and Y axes.

If you want to use acrylic CNC machining for your manufacturing process, pick only cast blanks. Extruded ones are not worth the effort.

Fixing Acrylic Parts For Machining Operations

Now that we’ve decided on the blank type we’ll use, let’s discuss acrylic fixing specifics. I won’t discuss CNC router acrylic specifics because any type of metal or plastic CNC router will do the job just fine. I don’t recommend using wood routers though. as they have less rigidity. So, back to the fixtures. There is a number of ways to clamp acrylic but what you should really consider is blank size. Acrylic despite being quite rigid is still plastic and you’ll need to care that long parts or large sheets are clamped tight along the whole area. Smaller parts can be clamped using simple jigs and vises. Longer pieces are often glued or taped to the working table and if you plan on machining acrylic sheets often, purchasing a vacuum table is a must. It will clamp and unclamp your sheets perfectly.

The Specifics of Machining Acrylic

Feedrates

Once you’ve fixed acrylic into place, it’s time to cut to the chase, so to speak. The majority of acrylic blanks are milled. The actual machining of acrylic on a CNC router is in many ways similar to machining polycarbonate. First of all, use a similar RPM: 15,000-18,000 RPM. Then, use a stable and considerably aggressive feed rate. That is required to prevent the tool from staying in the same place too much and generating heat with the friction that comes from the cutting. If the feed rate is too small, the chips will start welding back onto the part and you will ruin the valuable surface finish and precision.

Cutting Tools

Special cutting tools are a must. You need to buy special acrylic cutting bits because they have flutes that ensure optimal chip removal and consequently, precision. In addition, when drilling acrylic, the drill tip angle must be much smaller than that of a standard drill. Instead of 120 degrees, it should be 60. That is also modified for better chip removal. Oh, and don’t worry if you haven’t achieved a perfect optical clear surface after machining, It’s impossible. In order to get a completely transparent part, you’ll have to employ some more efforts with finishing operations.

Coolants

In any kind of CNC acrylic cutting process, keeping the temperature to a minimum is a must. That is why a lot of acrylic sheets are cooled down before machining. It makes for better chip removal and a lower starting temperature. Apart from that, you can use some standard coolants, however, if they have oils, make sure those don’t react with PMMA.

CNC Acrylic Engraving

Engraving is a variation of the acrylic machining process. The engraving of acrylic is done in the same way as milling but with a different cutting tool. It is a very widespread method since a lot of acrylic parts serve for advertisement or aesthetic purposes. Modern CNC systems have enabled the engraving of the most complex designs on a plastic sheet. The resulting groove can then be filled with some paint in order to make the design more visible.

Postprocessing Machined Acrylic

Having achieved the desired precision and form of the acrylic parts, it is always necessary to grind and polish the parts. That is usually done by consecutively applying polishing tools with a smaller grit and a linen towel with polishing paste at last. Apart from that, there are some chemical polishing methods that involve pouring special gas to melt the outer layer of acrylic. And the last but not least are exotic diamond tool single tip milling processes, when a tiny amount of plastic is cut from the surface by a very sharp and durable single-tip mill.

Our Advantages in CNC Machining Acrylic

WayKen as a professional prototype manufacturer takes pride in creating clear acrylic optical components in the plastic machining industry with 3-axis, 4-axis, or even 5-axis CNC  machines. To advance the development of ultra-precision manufacturing, we have adopted the latest diamond machining technology. This technique called SPDM or SPDT that can match the ability of 5-axis micro-milling to produce a range of lens and light guides types of excellent optical quality in an array or freeform pattern.

In the future, We will continue to improve our CNC prototyping services and upgrade machining equipment and cutting tools in order to maintain the highest quality machined clear plastic parts in the industry. To do this, we aim to provide the best service for customers that need machining all kinds of optical components in any complicated shapes as required.

QT4-16 MAQUINA BLOQUERA 

Máquina de ladrillos de hormigón de alta calidad QT4-16 El tipo de máquina de ladrillos de hormigón multifuncional es

un tipo de automático

máquina para fabricar ladrillos en nuestra empresa. Se utiliza principalmente en la construcción, puentes, carreteras.

Puede hacer ladrillo macizo,

Ladrillo hueco cambiando los moldes. Muy popular en el país que necesita construcción.

El precio también fue muy adecuado en esta área.

1) Estructura fuerte, fácil de instalar y mantener.

2) Adopción de componentes de marcas avanzadas de fama mundial en piezas neumáticas, piezas eléctricas y piezas

de operación.

3) Manivela doble de alta presión para controlar la apertura y el cierre de la matriz.

4) Ejecutando en una alta automatización e intelectualización

5) Aplique PLC y motores de marcas famosas para garantizar la durabilidad de la máquina.

Parámetro técnico

Modelo	QT4-16
Dimensión global	3000*1600*2500mm
Tiempo del ciclo	16s
Poder total	17KW
Tamaño paleta	900*550mm
Materias primas	Piedra triturada, arena, cemento, polvo y cenizas volantes de carbón, ceniza, escoria, ganaue, grava, perlita y otros residuos industriales.
Productos aplicados	Bloques de hormigón, productos de mampostería maciza / hueca / celular, adoquines con o sin mezcla frontal, productos de jardinería y paisajismo, losas, bordillos, bordillos, bloques de césped, bloques de pendiente, bloques entrelazados, etc.
Campos aplicados	Ampliamente utilizado en edificios, pavimentos de carreteras, plazas, jardines, paisajismo, construcciones de ciudades, etc.

Muestra de bloque

 Nuestro empresa 

PERFIL DE LA EMPRESA

Bienvenidos a nuestra empresa, somos un grupo de personas creativas.

QINGDAO HF INDUSTRY, CO.LTD es el fabricante y exportador profesional de tecnología de

máquinas blook

Siempre estamos desarrollando productos avanzados a nivel internacional.

Estándares para satisfacer las demandas de los consumidores. Hemos exportado a más de

116 países desde Peru,Ecuador,Colombia,Dominicana,Guatemala,mexico,Chile.y tener una excelente reputación entre los clientes.

Embalaje y entrega

FAQ

1> ¿Es esta máquina de bloques adecuada para que la usemos? ¿Podría decirnos el número de moldura,

el tamaño de la paleta que necesita?

Entonces podríamos recomendarle el modelo más adecuado para usted.

2> ¿En qué industria se utiliza habitualmente esta máquina de bloques? Ladrillos muticelulares, ladrillos

estándar, etc.

3> ¿Cómo utilizar la máquina de bloques? Le enviaremos el manual de funcionamiento después de que

compre la máquina.

4> ¿Qué tal el servicio postventa de la máquina de bloques? 1 año de garantía para toda la máquina

(sin repuestos) También vendemos las partes, si las necesita, solo díganos.

Nuestro cliente

 

Introducing Rogue Tabac 6mg

The All-American Rogue Tabac 6mg nicotine pouches -offering a tobacco leaf-free alternative to traditional oral tobacco products. Rogue Tabac 6mg pouches have a dark, aromatic flavor.

Rogue Tabac 6mg Facts

• Flavor: Tobacco
• Nicotine Strength: 6mg/pouch
• Number of Rogue Pouches per Can: 20
• Pouch Size: Slim
• Pouch Style: Dry nicotine pouches
• Manufacturer: NicoGen Pharma Solutions

How to Use Rogue Tobac 6mg Nicotine Pouches

Using Rogue Tobac 6mg nicotine pouches is simple, just follow these 4 steps to get started:

1. Put one of the Rogue pouches into your mouth
2. Park it under your upper or lower lip (typically, people prefer parking it under the upper lip between the lip and gum)
3. Leave it for up to 60 mins
4. Remove the pouch and dispose of it in the trash

About Rogue Nicotine

Rogue is a US-based brand that provides a selection of nicotine pouches that are 100% tobacco leaf-free. Rogue pouches come in a range of 10 different Rogue flavors, including wintergreen and mango, as well as 2 different nicotine strength options. However, Rogue also offers a range of other nicotine products including Rogue gums, Rogue lozenges and tablets. You can shop the full Rogue nicotine range on Northerner for good prices and fast delivery from our warehouses across the U.S. Buy Rogue Pouches online and get your pouches delivered to your home!

 Saudi Arabia and Turkey agree to build $133m factory

 

Saudi Arabian and Turkish investors have reached an agreement to establish the Kingdom’s first factory to build trailers and containers, at a cost of $133.3mn, it was announced on Wednesday.

The factory will be established at Jeddah Industrial City and will produce 5,000 trailers and containers in 2013, the chairman of the board of directors at Reema Group, said.

“The agreement will help the transfer of Turkish technology to Saudi Arabia,” said Anwar Basaad. He added that the prospects for the manufacture of trailers and containers in the Kingdom were good, a report in Arab News said.

“We intend to meet the local demand for trailers and containers,” Basaad said. The factory will be established on an area of 2,000m2 in the industrial city, the report said.

According to the agreement, the Turkish investors will train Saudi employees to operate and maintain the factory. More than 16,000 heavy trucks operate in the Kingdom and total investments into the light, medium and heavy transport sector are estimated to be around $21.3bn.

“We have set out for this project considering the Kingdom’s political and economic stability,” Basaad said, “We selected Turks for the project after conducting detailed studies,” he added.

The announcement comes in the wake of the Kingdom manufacturing Isuzu trucks in Damman. Furthermore, Jaguar Land Rover of Tata Motors said that it had signed a preliminary deal to build a plant in the Kingdom, with the stated aim of manufacturing 50,000 Land Rovers a year.

Guangzhou Chinchy Cosmetics Factory←Pls click this video link,You will gain a lot

About us

Guangzhou Chinchy Cosmetics Co., Ltd. is a comprehensive cosmetics manufacturer that integrates R&D, production and sales, and meets GMP, ISO 9001 and ISA 22716 standards. Since its establishment in 2005, it has developed many high-end brands such as Karseell, Delofil, Pallamina, etc. And sold to more than 30 countries including the United States, Vietnam, and Cambodia.

 

The factory covers an area of 24 acres and has a construction area of 22,000 square meters. It has a Class A dust-proof and explosion-proof workshop, which can reach a daily output of 40,000 bottles of a single production line. Advanced equipment, professional R&D team and modern factory guarantee the quality and quantity of our products. OEM&ODM services are warmly welcomed.

 

The 40-person operation department provides professional product consulting services, free packaging design, promotional pictures and videos, etc., help customers solve problems throughout the whole cooperation process.

 

This traditional Chinese Padded Jacket  for Women will be your cozy cocoon to spend the winter!

Made of velvet and polyester, the Chinese Padded Jacket is very warm to face the cold! In addition to being practical and comfortable, it is beautiful and will make you a true queen of style.

Its lined Mao collar will keep your neck warm and save you from a bad cold. But the highlight is the beautiful plant ornaments that surround the closure of the jacket!

Detail of the Chinese Padded Jacket 

• Traditional Chinese Padded Jacket 
• Material: Velvet and Polyester
• Mao collar
• Cold hand wash for an ideal conservation
• FREE STANDARD DELIVERY

---

FEATURES:

• Lightweight polyester fabric with natural stretch and semi-aniline leather palm
• Cow-suede external seam coverage and palm overlay
• Extensive punched palm sections for air circulation
• High tensile polyester mesh sections on back of hand
• Flare-style finger seams for added comfort and closer fit
• Rubber molded knuckle for impact protection
• 2-tone rubber molded wrist tab with anti-snag hook and loop closure
• Woven webbing pull-on loop at cuff
• Leather punched panels across fingers for improved air flow
• Touch pads for smartphones and digital tablets

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本教程适用版本：WPS 365 点击免费使用

我们在使用“删除重复项”功能时，遇到这样的错误警示窗，该如何解决呢？

▪多重区域删除错误

WPS暂不支持选中多个区域，对多个区域删除重复项。

如果想要删除厂商A和厂商C的重复区域，将厂商A与厂商C的信息合并为一列，再使用“删除重复项”功能，删除重复的数据。

>免费升级到企业版，赠超大存储空间

▪合并单元格删除错误

WPS暂不支持对合并的单元格删除重复数据。如果想要删除有合并单元格的数据列的重复数据，要先取消单元格合并，再使用“删除重复项”功能，删除重复的数据。

>免费升级到企业版，赠超大存储空间

▪未选择数据列删除错误

当进行删除重复项操作时，若是没有选择数据列，会弹出错误提示，这时只要选择指定删除的列，就可以了。

>免费升级到企业版，赠超大存储空间

▪选择区域无效错误

当我们删除重复项时，所选的单元格区域是空白单元格，会出现无效选择区域的弹窗。

空白单元格是无法进行删除重复项操作的，这时只要选择正确的单元格区域，就可以了。

 

Luoyang EFANT Bearing Will Participate In The Guangdong International Machine Tool Exhibition

Luoyang EFANT Precision Bearing Manufacturing Co., Ltd. is honored to announce that it will participate in the International Machine Tool Exhibition held in Houjie, Dongguan from November 9th to 12th. As an industry-leading bearing manufacturer, Luoyang EFANT Bearing will showcase innovative technologies and solutions for its company's representative products, crossed roller bearings and turntable bearings.

This exhibition is a grand event for the mechanical automation industry, attracting professional exhibitors and visitors from around the world. Luoyang EFANT Bearing will use this opportunity to demonstrate its professional strength and rich experience in the bearing field to participants. Crossed roller bearing turntable bearings are one of the company's core products, featuring high load carrying capacity, high precision and stability, and are widely used in machine tools, industrial automation and precision equipment.

During the exhibition, Luoyang EFANT's professional team will share with attendees the latest development trends in crossed roller bearing and turntable bearing technology, and provide customized solutions to meet customers' specific needs. Visitors will have the opportunity to have in-depth exchanges with technical experts to understand the applications and advantages of bearings, as well as the comprehensive capabilities and quality assurance of Luoyang EFANT Precision Bearing Manufacturing Co., Ltd.

Our exhibition number is 3A65, and we look forward to discussing cooperation opportunities with industry stakeholders and professionals to jointly promote the development and progress of the industry. Welcome to visit our booth and experience our innovative products and quality services for yourself.

Contact

Company:Luoyang EFANT Precision Bearing Manufacturing Co. Ltd

Address:No. 9 Jingjin North Rd, Luoxin Development Zone, 

Xin'an County, Luoyang City, Henan Province 471003, China

Tel:86-379-80887690

[email protected]

https://www.efindbearing.com

https://www.efindbearing.com/contact-us