Problem: Article: This is a danger zone for cast iron, during which it is the most unstable and difficult to work with. This will usually mean heating or cooling the iron before and during the work. If cold, you can sometimes run the machinery to get it up to the desired temperature. Hotter patches can ruin the weld, and cold patches will take too long to heat up to welding temperature. Consult your engineering specifications documents to know the best temperature for the exact iron formula you are using in your project.
Summary: Keep the cast iron out of the range of 150 to 500 degrees Fahrenheit (65 to 260 Celsius). Preheat the sections that require work to the 500 to 1,200F (260 to 649C) range (260 to 649 Celsius). Keep nearby iron cool, but not cold. Keep your repair patch cool enough that you can touch it safety with your bare hand.

INPUT ARTICLE: Article: To turn your plain cake into a rich, chocolate cake, swap 1/2 cup (65 g) of cocoa powder for 1/2 cup (65 g) of the all-purpose flour. You can also add 1 cup (175 g) of bittersweet chocolate chips to make a double-chocolate cake. Consider frosting your chocolate cake with cream cheese frosting or chocolate buttercream. Adjust the flavor of your plain cake by stirring in a little flavoring extract when you add the eggs to the batter. Consider using vanilla, lemon, almond, coffee, coconut, or orange blossom extract to your batter. If you're making a citrus-flavored cake, try rubbing the zest from 1 lemon, 1 orange, or 1/2 of a grapefruit into the sugar for the cake before you cream it with the butter. This will release citrus oils into the sugar. Whisk 1 teaspoon (2 g) of ground cinnamon, 1/2 teaspoon (1 g) of ground cardamom or allspice, and a pinch of ground black pepper to the dry ingredients of your plain cake. Once you've made the spiced batter and baked the cake, you might want to frost it with cream cheese buttercream. For extra spice, stir 1 tablespoon (7 g) of grated ginger into butter and sugar mixture. To give your cake a little extra color or crunch, add a handful of chopped or slivered nuts, such as almonds or pecans. You could also scatter colorful sprinkles for a festive birthday cake or a crumbly streusel to make a simple coffee cake. For the crunchiest texture, use toasted nuts instead of raw nuts. If you don't want to bake with eggs, use a vegan egg substitute or 3 fluid ounces (89ml) of milk, buttermilk, or sour cream instead of the 2 eggs. Keep in mind that your plain cake will be a little dryer than a cake made with the eggs. To make a completely vegan plain cake, you'll also need to use a vegan butter product and substitute alternative milk, such as almond or oat milk, for the buttermilk. Purchase a gluten-free baking flour that's designed to use in place of all-purpose flour. You should be able to use substitute the same amount of gluten-free baking flour as the all-purpose flour called for in the recipe, so it's easy to use! If you'd like to substitute gluten-free flour, such as almond or chickpea flour, follow the manufacturer's instructions for baking with it. Keep in mind that the texture of your cake may be more crumbly than if you bake with all-purpose flour.

SUMMARY: Substitute some of the flour with cocoa to make a chocolate cake. Stir in 1 to 2 teaspoons (4.9 to 9.9ml) of an extract to add flavor. Add spices to the dry ingredients for a warm spice cake. Scatter toppings over the plain cake before you bake it. Use an egg substitute if you'd like to make an eggless cake. Make a gluten-free cake by adjusting the flour.

In one sentence, describe what the following article is about: After a good soak, it's important to wash the pants right away before they have time to dry. Be sure to only wash your uniform pants with other white fabrics. If the rest of your uniform needs to be washed, you can throw them in together. Once loose stains dry a second time, they can be even harder to get out. If you wash your uniform with bright colors that have a tendency to run, you could find yourself dealing with a whole new set of difficult stains. Add the laundry detergent straight to the clothes, rather than to a separate dispenser. You'll have the most luck with stain-dissolving detergents made specifically for whites. Use a whole capful of detergent to provide the maximum amount of cleaning muscle. Set the washing machine to a normal wash cycle. Use warm water. Whatever stains are leftover from the first two phases of cleaning should be totally erased following a thorough machine washing. Add a cup of distilled white vinegar during the rinse cycle. Vinegar can brighten and soften light fabrics, making it a great way to provide the finishing touches to hard-wearing garments. Especially dingy pants may need to be laundered on a heavier soil setting. The intense heat of the dryer may shrink cotton and blended pants. To prevent this, hang the pants vertically in a well-ventilated area overnight. Afterwards, they'll be clean and ready to go so you can look your best at the big game! Pants made from polyester and other synthetic fabrics are typically dryer safe. If the pants are wrinkled after they dry, give them a few passes with an iron on a low heat setting.
Summary: Place the pants in the washing machine. Pour in a strong detergent. Wash the pants. Hang the pants up to air dry.

In one sentence, describe what the following article is about: If you've uploaded a video to Wuala, tap on it in the "Wuala" file browser.
Summary:
Tap on the video file. Select the default player you want to use. Watch and enjoy.