Classification of tablet press: Models can be divided into single punch tablet press, rotary tablet press, sub-high speed rotary tablet press, automatic high speed tablet press and rotary core tablet press.
The sheet shape pressed by the tablet press is initially flat circular, and later developed into shallow circular arc and deep circular arc on both sides, which is for the need of coating. With the development of special-shaped tablet press, oval, triangle, oblong, square, diamond, circular ring tablets followed. In addition, with the continuous development of preparations, due to the requirements of compound preparations and timed release preparations, special tablets such as double layer, triple layer and core coating are made, which need to be completed on special tablet press.
Rotary tablet press is a machine which is made of several pairs of die distributed on the turntable to make a circular lifting movement according to a certain track and press the granular material into tablet through the press wheel. And the stamping rod with the rotary table rotating speed ≥60m/min line press is called high-speed rotary tablet press, this high-speed rotary tablet press has a forced feeding mechanism, the machine is controlled by PLC, has the automatic adjustment of pressure, control the weight of the piece, eliminate the waste piece, print data, display fault shutdown and other functions, in addition to the control of the weight difference within a certain range, Quality problems such as missing Angle and loose lobe can be automatically identified and eliminated.
With the development of market demand, the scope of application of tablet press is more and more wide, no longer simply limited to the suppression of Chinese and Western medicine tablets, more widely suppressed health food, veterinary medicine tablets, chemical tablets: such as mothballs, washing blocks, smurf blocks, art powder, pesticide tablets, food tablets: chicken essence block, isatis root block, divine Qu tea block, compressed biscuits.
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How to train in the cold
Winter weather doesn’t have to end your cycling adventures, but it does require some thoughtful adjustments to keep you riding all year round. For many cyclists, winter often means a switch to indoor training, but that doesn’t have to be the case. Unless conditions are truly extreme, there’s no reason you can’t continue enjoying outdoor rides. In fact, with the right preparation and mindset, winter biking can be just as rewarding as summer riding.
**The Health Benefits of Winter Biking**
Before giving up on cycling until spring, it's worth considering the health benefits of winter riding. Research shows that cycling in cold weather has a positive impact on both mental and physical well-being. One of the most notable advantages is its ability to help combat seasonal affective disorder (SAD), often referred to as the "winter blues." According to Mental Health America, SAD affects about 5% of the U.S. population each year, with symptoms like increased sleepiness, weight gain, and carbohydrate cravings being more common during the colder months.
Winter cycling can help prevent inactivity and provide a natural mood boost by getting you outdoors, moving your body, and exposing yourself to fresh air and changing scenery. Many cyclists find a sense of peace or excitement during their winter rides, making it a great way to stay active and mentally engaged throughout the season.
**How Cold Weather Affects the Body**
While your body works hard to maintain its internal temperature, cold weather can make this process more challenging. As temperatures drop, your body loses heat faster, forcing it to work harder to stay warm. This can lead to an elevated heart rate, increased blood pressure, and muscle stiffness, which may make your ride feel more difficult.
Cold-induced muscle contractions can also occur, causing your muscles and joints to tighten, reducing flexibility and increasing the risk of injury. Breathing in cold air for long periods can trigger bronchoconstriction, especially for those with asthma or other respiratory conditions. Shivering is a clear sign that your body is struggling to stay warm, and at that point, it's best to stop and seek shelter to avoid hypothermia.
Warming up before a ride is essential, as it helps prepare your muscles, airways, and lungs for the cold, making the transition from warm to cold easier on your body.
**Preparing for Winter Rides**
When planning a winter ride, there are several factors to consider. First, always check the weather forecast and plan for the worst-case scenario. Temperature, humidity, wind chill, and visibility all play a role in how safe and comfortable your ride will be.
Humidity can be tricky in the cold, as moisture from the air can cling to your skin and make you feel even colder. Wearing moisture-wicking base layers and using materials like merino wool can help regulate body temperature and keep you dry.
Wind chill is another major concern, as it can rapidly lower your body temperature. Sticking to less exposed routes and wearing wind-blocking gear can make a big difference. If you're riding in snowy or icy conditions, switching to winter-specific tires can improve traction and safety.
**Dressing for Success**
Proper layering is key to staying warm and comfortable during winter rides. Start with a moisture-wicking base layer, add insulation in the middle, and finish with a windproof and waterproof outer shell. Don’t forget to protect your extremities—gloves, thick socks, and insulated shoes are essential to keep your hands and feet warm.
Your head and neck also lose a lot of heat, so a beanie or balaclava can make a big difference. Protecting your eyes with sunglasses or goggles is also important to shield them from wind and cold.
**Long Rides in the Cold**
Long rides in extremely cold weather (20°F or below) can be dangerous for both you and your bike. Cold temperatures can cause mechanical issues, such as stiff chain lube, reduced tire grip, and brake performance problems. If you must go out for a long ride, bring extra layers, food, water, and a fully charged phone.
If you realize you’re underprepared mid-ride, the best course of action is to get home as quickly as possible. Avoid stopping unless necessary, as this can cause your muscles to cool down too quickly. Once back home, remove wet clothes and warm up gradually.
**Stay Safe, Stay Active**
With the right gear, preparation, and mindset, winter cycling can be a rewarding and enjoyable experience. Whether you're looking to maintain fitness, boost your mood, or simply enjoy the quiet beauty of a snowy trail, there's no reason to let winter slow you down. Stay warm, stay safe, and keep pedaling through the cold.